BSI Combustion Chamber LEAP NOV-01-2022 [PDF]

Zitiervorschau

JOB CARD PACKAGE TITLE: BSI Combustion Chamber

Reference 72-40-00-290-801-A

JCP Title: BSI Combustion Chamber

AZU - A318/A319/A320/ A321 Tail Number - MSN FSN ALL

Title Borescope Inspection of Combustion Section and Fuel Nozzles

CERTIFICATE OF TASK / INSPECTION COMPLETION: CERTIFIES THAT THE TASK / INSPECTION HAS BEEN COMPLETED TO THE REQUIRED STANDARD AND SUPPORTS THE FINAL MAINTENANCE RELEASE / CERTIFICATE OF RELEASE TO SERVICE

DocType AMM

Page 1 of 1 PRINT DATE: Nov 05/2022

JOB CARD AMM - AZU - A318/A319/A320/A321 Tail Number - MSN FSN: ALL

TITLE:

REV DATE: Nov 01/2022 TASK: 72-40-00-290-801-A 72-40-00-06 CONF 03

72-40-00-290-801-A - Borescope Inspection of Combustion Section and Fuel Nozzles

MECH.

INSP.

** ON A/C FSN ALL TASK 72-40-00-290-801-A Borescope Inspection of Combustion Section and Fuel Nozzles WARNING:

BE CAREFUL WHEN YOU DO WORK ON THE ENGINE PARTS AFTER THE ENGINE SHUTDOWN. USE APPLICABLE THERMAL GLOVES. THE ENGINE PARTS CAN STAY HOT FOR ONE HOUR AFTER SHUTDOWN AND CAN BURN YOU.

WARNING:

BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.

1.

Reason for the Job Refer to the MPD TASK: 724000-L2 BORESCOPE INSPECTION OF COMBUSTION SECTION AND FUEL NOZZLES.

2.

Job Set-up Information A.

Fixtures, Tools, Test and Support Equipment REFERENCE

B.

QTY

DESIGNATION

No specific

1

ACCESS PLATFORM 1M(3 FT)

No specific

1

BORESCOPE DIA 3.8 MM (0.15 IN)

No specific

AR

WARNING NOTICE(S)

No specific

1

WRENCH - STANDARD

No specific

Torque wrench: range to between 97 and 113 lbf.in (1.10 and 1.28 m.daN)

No specific

Torque wrench: range to between 262 and 307 lbf.in (2.96 and 3.47 m.daN)

Consumable Materials

JCP Title: BSI Combustion Chamber

CERTIFICATE OF TASK / INSPECTION COMPLETION: CERTIFIES THAT THE TASK / INSPECTION HAS BEEN COMPLETED TO THE REQUIRED STANDARD AND SUPPORTS THE FINAL MAINTENANCE RELEASE / CERTIFICATE OF RELEASE TO SERVICE

Page 1 of 44 PRINT DATE: Nov 05/2022

JOB CARD AMM - AZU - A318/A319/A320/A321 Tail Number - MSN FSN: ALL

TITLE:

REV DATE: Nov 01/2022 TASK: 72-40-00-290-801-A 72-40-00-06 CONF 03

72-40-00-290-801-A - Borescope Inspection of Combustion Section and Fuel Nozzles

MECH.

REFERENCE

C.

INSP.

DESIGNATION

CP2619

Never Seez-Pure Nickel, Special

CP2691

penetrant

CP2961

tiodize T8E-H grease

Work Zones and Access Panels ZONE/ACCESS

ZONE DESCRIPTION

210

CKPT,FWD COMPT BHD TO FLT COMPT BULKHEAD

400

POWER PLANT, NACELLES AND PYLONS

FOR 4020KM1(POWER PLANT-DEMOUNTABLE, ENGINE 1) 437AL, 438AR, 451AL, 452AR FOR 4020KM2(POWER PLANT-DEMOUNTABLE, ENGINE 2) 447AL, 448AR, 461AL, 462AR D.

Referenced Information REFERENCE

DESIGNATION

Ref. 71-13-00-010-803-A

Opening of the Fan Cowl Doors

Ref. 71-13-00-410-803-A

Closing of the Fan Cowl Doors

Ref. 72-00-00-290-812-A

Engine Borescope Examination Preparation

Ref. 74-21-10-000-802-A

Removal of the No. 1 (Left) Igniter

Ref. 74-21-10-000-803-A

Removal of the No. 2 (Right) Igniter

JCP Title: BSI Combustion Chamber

CERTIFICATE OF TASK / INSPECTION COMPLETION: CERTIFIES THAT THE TASK / INSPECTION HAS BEEN COMPLETED TO THE REQUIRED STANDARD AND SUPPORTS THE FINAL MAINTENANCE RELEASE / CERTIFICATE OF RELEASE TO SERVICE

Page 2 of 44 PRINT DATE: Nov 05/2022

JOB CARD AMM - AZU - A318/A319/A320/A321 Tail Number - MSN FSN: ALL

TITLE:

REV DATE: Nov 01/2022 TASK: 72-40-00-290-801-A 72-40-00-06 CONF 03

72-40-00-290-801-A - Borescope Inspection of Combustion Section and Fuel Nozzles

MECH.

REFERENCE

INSP.

DESIGNATION

Ref. 74-21-10-210-801-A

Visual Inspection of the Igniter

Ref. 74-21-10-400-802-A

Installation of the No. 1 (Left) Igniter

Ref. 74-21-10-400-803-A

Installation of the No. 2 (right) Igniter

Ref. 78-30-00-040-809-A

Deactivation of the Thrust Reverser System for Ground Maintenance

Ref. 78-30-00-440-809-A

Reactivation of the Thrust Reverser System after Ground Maintenance

Ref. 78-36-00-010-806-A

Opening of the Thrust Reverser Cowl Doors

Ref. 78-36-00-410-806-A

Closing of the Thrust Reverser Cowl Doors

Ref. Fig. Combustion Section Borescope Port Locations Ref. Fig. Combustion Section Inspection Ref. Fig. HPT Stage One Nozzle Airfoil Inspection Ref. Fig. CDN Borescope Plugs (PRE and POST SB 72-0225)

3.

Job Set-up SUBTASK 72-40-00-941-051-A A. Safety Precautions (1)

JCP Title: BSI Combustion Chamber

On the center pedestal, on ENG panel 115VU: (a)

Make sure that the ENG/MODE selector switch is in the NORM position.

(b)

Make sure that the ENG/MASTER 1(2) control switch was in the OFF position not less than five minutes before you do this procedure.

CERTIFICATE OF TASK / INSPECTION COMPLETION: CERTIFIES THAT THE TASK / INSPECTION HAS BEEN COMPLETED TO THE REQUIRED STANDARD AND SUPPORTS THE FINAL MAINTENANCE RELEASE / CERTIFICATE OF RELEASE TO SERVICE

Page 3 of 44 PRINT DATE: Nov 05/2022

JOB CARD AMM - AZU - A318/A319/A320/A321 Tail Number - MSN FSN: ALL

TITLE:

REV DATE: Nov 01/2022 TASK: 72-40-00-290-801-A 72-40-00-06 CONF 03

72-40-00-290-801-A - Borescope Inspection of Combustion Section and Fuel Nozzles

MECH.

(c)

Put the WARNING NOTICE(S) in position to tell persons not to operate: -

(2)

INSP.

The ENG/MODE selector switch, and The ENG/MASTER 1(2) control switch.

On the ENG section of maintenance panel 50VU: (a)

Make sure that the ON legend of the FADEC GND PWR/1(2) pushbutton switch is off.

(b)

Put the WARNING NOTICE(S) in position to tell persons not to energize FADEC 1(2).

SUBTASK 72-40-00-010-052-A B. Get Access (1)

Open the fan cowl doors Ref. AMM TASK 71-13-00-010-803: (a)

FOR 4020KM1 (POWER PLANT-DEMOUNTABLE, ENGINE 1) 437AL, 438AR

(b)

FOR 4020KM2 (POWER PLANT-DEMOUNTABLE, ENGINE 2) 447AL, 448AR.

SUBTASK 72-40-00-040-051-A C. Deactivation of the Thrust Reverser System for Maintenance WARNING:

(1)

YOU MUST DEACTIVATE THE THRUST REVERSER BEFORE YOU DO WORK ON OR AROUND IT. IF YOU DO NOT, THE THRUST REVERSER CAN OPERATE ACCIDENTALLY AND CAUSE AN INJURY AND/OR DAMAGE. Do the deactivation of the thrust reverser system for maintenance Ref. AMM TASK 78-30-00-040-809.

SUBTASK 72-40-00-010-053-A D. Open the thrust reverser cowl-doors Ref. AMM TASK 78-36-00-010-806:

JCP Title: BSI Combustion Chamber

CERTIFICATE OF TASK / INSPECTION COMPLETION: CERTIFIES THAT THE TASK / INSPECTION HAS BEEN COMPLETED TO THE REQUIRED STANDARD AND SUPPORTS THE FINAL MAINTENANCE RELEASE / CERTIFICATE OF RELEASE TO SERVICE

Page 4 of 44 PRINT DATE: Nov 05/2022

JOB CARD AMM - AZU - A318/A319/A320/A321 TITLE:

Tail Number - MSN FSN: ALL

REV DATE: Nov 01/2022 TASK: 72-40-00-290-801-A 72-40-00-06 CONF 03

72-40-00-290-801-A - Borescope Inspection of Combustion Section and Fuel Nozzles

MECH.

4.

(1)

FOR 4020KM1 (POWER PLANT-DEMOUNTABLE, ENGINE 1) 451AL, 452AR

(2)

FOR 4020KM2 (POWER PLANT-DEMOUNTABLE, ENGINE 2) 461AL, 462AR.

(3)

Put an ACCESS PLATFORM 1M(3 FT) in position.

INSP.

Procedure Ref. Fig. Combustion Section Borescope Port Locations Ref. Fig. Combustion Section Inspection Ref. Fig. HPT Stage One Nozzle Airfoil Inspection Ref. Fig. CDN Borescope Plugs (PRE and POST SB 72-0225) SUBTASK 72-40-00-290-050-A A. Do the borescope examination preparation Ref. AMM TASK 72-00-00-290-812. SUBTASK 72-40-00-020-050-A B. Do further preparation as follows: (1)

Remove the borescope plugs from ports N and Q.

NOTE:

JCP Title: BSI Combustion Chamber

Only remove the plugs necessary for inspection.

(a)

Apply spray of penetrant (Material Ref. CP2691) on the ratcheting mechanism.

(b)

Let it soak.

(c)

Apply a break torque with the WRENCH - STANDARD to remove the borescope plug from the case.

(d)

Apply spray of penetrant (Material Ref. CP2691) again to lubricate the borescope plug thread, if necessary.

(e)

Continue to remove the borescope plug.

(f)

Put an identification tag on each borescope plug.

CERTIFICATE OF TASK / INSPECTION COMPLETION: CERTIFIES THAT THE TASK / INSPECTION HAS BEEN COMPLETED TO THE REQUIRED STANDARD AND SUPPORTS THE FINAL MAINTENANCE RELEASE / CERTIFICATE OF RELEASE TO SERVICE

Page 5 of 44 PRINT DATE: Nov 05/2022

JOB CARD AMM - AZU - A318/A319/A320/A321 TITLE:

Tail Number - MSN FSN: ALL

REV DATE: Nov 01/2022 TASK: 72-40-00-290-801-A 72-40-00-06 CONF 03

72-40-00-290-801-A - Borescope Inspection of Combustion Section and Fuel Nozzles

MECH.

(g)

(2)

For any borescope plugs not removed (N or Q), do a check as follows:

(a)

JCP Title: BSI Combustion Chamber

Do a visual check to make sure that the antirotation sleeve of the locking ring is fully engaged with one of the two slots on the borescope boss, on the borescope inspection port.

2

Make sure that the borescope plug is fully installed against the case.

3

Use the BORESCOPE DIA 3.8 MM (0.15 IN) to check the condition of the borescope plugs, if there is no direct visual access.

4

Apply hand pressure to the borescope plug in the removal direction to check for loose plugs.

5

If the borescope plug is loose, apply correct torque value again. Refer to paragraph 4.E.

Removal of no. 1 (left) and no. 2 (right) igniters may not be necessary if you use flexible borescope inspection equipment. Remove the igniters if you find something that you cannot examine through the borescope inspection ports N and Q.

Put an identification tag on no. 1 (left) igniter.

Remove no. 2 (right) igniter Ref. AMM TASK 74-21-10-000-803: (a)

(4)

1

Remove no. 1 (left) igniter Ref. AMM TASK 74-21-10-000-802: Ref. Fig. Combustion Section Borescope Port Locations

NOTE:

(3)

INSP.

Put an identification tag on no. 2 (right) igniter.

Insert the BORESCOPE DIA 3.8 MM (0.15 IN) (or alternate) into its position for the inspection.

CERTIFICATE OF TASK / INSPECTION COMPLETION: CERTIFIES THAT THE TASK / INSPECTION HAS BEEN COMPLETED TO THE REQUIRED STANDARD AND SUPPORTS THE FINAL MAINTENANCE RELEASE / CERTIFICATE OF RELEASE TO SERVICE

Page 6 of 44 PRINT DATE: Nov 05/2022

REV DATE: Nov 01/2022

JOB CARD AMM - AZU - A318/A319/A320/A321 Tail Number - MSN FSN: ALL

TITLE:

TASK: 72-40-00-290-801-A 72-40-00-06 CONF 03

72-40-00-290-801-A - Borescope Inspection of Combustion Section and Fuel Nozzles

MECH.

INSP.

SUBTASK 72-40-00-290-051-A C. Combustor / High Pressure Turbine (HPT) Section Inspection (1)

Table 601 identifies how many fuel nozzles, HPT stage 1 nozzle airfoils and deflector plates there are for the combustion section and HPT stage 1 nozzle.                                    Table 601:                                   

Component

Quantity

Fuel nozzles

19

Stage 1 HPT nozzle airfoils

36

Combustion section deflector 19 plates (2)

Do an inspection of: INSPECTION/ CHECK

MAXIMUM SERVICEABLE LIMITS

REMARKS

1.Do an examination of the surfaces of the combustor, fuel nozzles aft heat shield and stage 1 nozzle leading edge as follows: Ref. Fig. HPT Stage One Nozzle Airfoil Inspection

JCP Title: BSI Combustion Chamber

(a) Discoloration

Discoloration is permitted.

(b) Carbon accumulation

Any amount of carbon deposit is permitted.

CERTIFICATE OF TASK / INSPECTION COMPLETION: CERTIFIES THAT THE TASK / INSPECTION HAS BEEN COMPLETED TO THE REQUIRED STANDARD AND SUPPORTS THE FINAL MAINTENANCE RELEASE / CERTIFICATE OF RELEASE TO SERVICE

Page 7 of 44 PRINT DATE: Nov 05/2022

REV DATE: Nov 01/2022

JOB CARD AMM - AZU - A318/A319/A320/A321 Tail Number - MSN FSN: ALL

TITLE:

TASK: 72-40-00-290-801-A 72-40-00-06 CONF 03

72-40-00-290-801-A - Borescope Inspection of Combustion Section and Fuel Nozzles

MECH.

INSPECTION/ CHECK (c) Missing, chipped or spalled areas of the thermal barrier coating

MAXIMUM SERVICEABLE LIMITS

INSP.

REMARKS

Any amount of missing, chipped or spalled areas of thermal barrier coating is permitted.

2. Examine the deflectors and the dome plate (if it is visible) as follows: Ref. Fig. Combustion Section Inspection (Sheet 1, Sheet 3, Sheet 4 and Sheet 5)

JCP Title: BSI Combustion Chamber

(a) Distortion of the deflector

Any amount permitted.

(b) Axial or radial cracks in the deflector (View F)

There is no limit to the number of cracks permitted in these conditions: All cracks are less than or equal to 0.200 in. (5.08 mm) in length The cracks are not connected.

CERTIFICATE OF TASK / INSPECTION COMPLETION: CERTIFIES THAT THE TASK / INSPECTION HAS BEEN COMPLETED TO THE REQUIRED STANDARD AND SUPPORTS THE FINAL MAINTENANCE RELEASE / CERTIFICATE OF RELEASE TO SERVICE

Page 8 of 44 PRINT DATE: Nov 05/2022

REV DATE: Nov 01/2022

JOB CARD AMM - AZU - A318/A319/A320/A321 Tail Number - MSN FSN: ALL

TITLE:

TASK: 72-40-00-290-801-A 72-40-00-06 CONF 03

72-40-00-290-801-A - Borescope Inspection of Combustion Section and Fuel Nozzles

MECH.

INSPECTION/ CHECK

MAXIMUM SERVICEABLE LIMITS

(c) OverIn area A (middle): serviceable limit Cracks with a extension for axial distance from or radial cracks in the crack tip to the deflector nearest deflector edge more than 0.133 in. (3.38 mm) are permitted for 250 cycles Cracks with a distance from the crack tip to nearest deflector edge less than or equal to 0.133 in. (3.38 mm) but not less than 0.080 in. (2.03 mm) are permitted for 150 cycles.

JCP Title: BSI Combustion Chamber

INSP.

REMARKS This overserviceable limit extension is for a reduced interval, repeat inspection.

CERTIFICATE OF TASK / INSPECTION COMPLETION: CERTIFIES THAT THE TASK / INSPECTION HAS BEEN COMPLETED TO THE REQUIRED STANDARD AND SUPPORTS THE FINAL MAINTENANCE RELEASE / CERTIFICATE OF RELEASE TO SERVICE

Page 9 of 44 PRINT DATE: Nov 05/2022

REV DATE: Nov 01/2022

JOB CARD AMM - AZU - A318/A319/A320/A321 Tail Number - MSN FSN: ALL

TITLE:

TASK: 72-40-00-290-801-A 72-40-00-06 CONF 03

72-40-00-290-801-A - Borescope Inspection of Combustion Section and Fuel Nozzles

MECH.

MAXIMUM SERVICEABLE LIMITS

INSPECTION/ CHECK -

-

JCP Title: BSI Combustion Chamber

Cracks with a distance from the crack tip to nearest deflector edge less than or equal to 0.080 in. (2.03 mm) are permitted for 25 cycles Only one (1) crack that extends to the outer edge is permitted for 25 cycles.

INSP.

REMARKS This overserviceable limit extension is for a one-time continue-inservice application.

CERTIFICATE OF TASK / INSPECTION COMPLETION: CERTIFIES THAT THE TASK / INSPECTION HAS BEEN COMPLETED TO THE REQUIRED STANDARD AND SUPPORTS THE FINAL MAINTENANCE RELEASE / CERTIFICATE OF RELEASE TO SERVICE

Page 10 of 44 PRINT DATE: Nov 05/2022

REV DATE: Nov 01/2022

JOB CARD AMM - AZU - A318/A319/A320/A321 Tail Number - MSN FSN: ALL

TITLE:

TASK: 72-40-00-290-801-A 72-40-00-06 CONF 03

72-40-00-290-801-A - Borescope Inspection of Combustion Section and Fuel Nozzles

MECH.

INSPECTION/ CHECK

MAXIMUM SERVICEABLE LIMITS In area B (wings): Cracks with a distance from the crack tip to the nearest deflector edge more than 0.400 in. (10.16 mm) are permitted for 250 cycles Cracks with a distance from the crack tip to the nearest deflector edge less than or equal to 0.400 in. (10.16 mm) but not less than 0.080 in. (2.03 mm) are permitted for 150 cycles.

JCP Title: BSI Combustion Chamber

INSP.

REMARKS This overserviceable limit extension is for a reduced interval, repeat inspection.

CERTIFICATE OF TASK / INSPECTION COMPLETION: CERTIFIES THAT THE TASK / INSPECTION HAS BEEN COMPLETED TO THE REQUIRED STANDARD AND SUPPORTS THE FINAL MAINTENANCE RELEASE / CERTIFICATE OF RELEASE TO SERVICE

Page 11 of 44 PRINT DATE: Nov 05/2022

REV DATE: Nov 01/2022

JOB CARD AMM - AZU - A318/A319/A320/A321 Tail Number - MSN FSN: ALL

TITLE:

TASK: 72-40-00-290-801-A 72-40-00-06 CONF 03

72-40-00-290-801-A - Borescope Inspection of Combustion Section and Fuel Nozzles

MECH.

MAXIMUM SERVICEABLE LIMITS

INSPECTION/ CHECK -

-

JCP Title: BSI Combustion Chamber

Cracks with a distance from the crack tip to the nearest deflector edge less than or equal to 0.080 in. (2.03 mm) are permitted for 25 cycles Only one (1) crack that extends to the outer edge is permitted for 25 cycles.

INSP.

REMARKS This overserviceable limit extension is for a one-time continue-inservice application.

(d) Circumferential cracks in the deflector (View F)

No cracks are permitted.

(e) Missing deflector material (View F)

Missing material is There are a total permitted on the of 19 deflectors. deflector as long as the maximum depth of missing material does not exceed 0.100 in. (2.54 mm) per deflector from the edge (first row of cooling holes fully visible).

CERTIFICATE OF TASK / INSPECTION COMPLETION: CERTIFIES THAT THE TASK / INSPECTION HAS BEEN COMPLETED TO THE REQUIRED STANDARD AND SUPPORTS THE FINAL MAINTENANCE RELEASE / CERTIFICATE OF RELEASE TO SERVICE

Page 12 of 44 PRINT DATE: Nov 05/2022

REV DATE: Nov 01/2022

JOB CARD AMM - AZU - A318/A319/A320/A321 Tail Number - MSN FSN: ALL

TITLE:

TASK: 72-40-00-290-801-A 72-40-00-06 CONF 03

72-40-00-290-801-A - Borescope Inspection of Combustion Section and Fuel Nozzles

MECH.

INSPECTION/ CHECK (f) Overserviceable limit extension for missing deflector material

MAXIMUM SERVICEABLE LIMITS Missing material more than the serviceable limits is permitted for 25 cycles.

INSP.

REMARKS This overserviceable limit extension is for a one-time continue-inservice application.

(g) Radial dome There is no limit to plate cracks (View the number of radial F) cracks permitted in these conditions: All radial cracks are less than or equal to 0.200 in. (5.08 mm) in length The cracks are not connected. (h) Overserviceable limit extension for radial dome plate cracks (View F)

Radial cracks between 0.200 in. (5.08 mm) and 0.40 in. (10.16 mm) in length. The cracks are not connected: The cracks that have a separation of minimum 2.0 in. (50.80 mm) and cracks from the innermost cooling holes of each dome plate are permitted for 25 cycles.

JCP Title: BSI Combustion Chamber

This overserviceable limit extension is for a one-time continue-inservice application.

CERTIFICATE OF TASK / INSPECTION COMPLETION: CERTIFIES THAT THE TASK / INSPECTION HAS BEEN COMPLETED TO THE REQUIRED STANDARD AND SUPPORTS THE FINAL MAINTENANCE RELEASE / CERTIFICATE OF RELEASE TO SERVICE

Page 13 of 44 PRINT DATE: Nov 05/2022

REV DATE: Nov 01/2022

JOB CARD AMM - AZU - A318/A319/A320/A321 Tail Number - MSN FSN: ALL

TITLE:

TASK: 72-40-00-290-801-A 72-40-00-06 CONF 03

72-40-00-290-801-A - Borescope Inspection of Combustion Section and Fuel Nozzles

MECH.

INSPECTION/ CHECK

MAXIMUM SERVICEABLE LIMITS

INSP.

REMARKS

(i) Circumferential No circumferential dome plate cracks cracks are permitted. (View F) (j) Overserviceable limit extension circumferential dome plate cracks (View F)

Circumferential cracks up to 0.40 in. (10.16 mm), not connected, with 2.0 in. (50.80 mm) minimum separation are permitted for 25 cycles.

This overserviceable limit extension is for a one-time continue-inservice application.

3. Examine the combustion chamber mixer trailing edge as follows: Ref. Fig. Combustion Section Inspection (See Sheet 3, Sheet 5 and Sheet 6) (a) Oxidation or missing material (View J and Section A-A)

JCP Title: BSI Combustion Chamber

In Area X up to 0.050 in. (1.27 mm) of missing material permitted from the trailing edge, limited to 270 degrees in the circumferential direction (at any clocking position).

CERTIFICATE OF TASK / INSPECTION COMPLETION: CERTIFIES THAT THE TASK / INSPECTION HAS BEEN COMPLETED TO THE REQUIRED STANDARD AND SUPPORTS THE FINAL MAINTENANCE RELEASE / CERTIFICATE OF RELEASE TO SERVICE

Page 14 of 44 PRINT DATE: Nov 05/2022

REV DATE: Nov 01/2022

JOB CARD AMM - AZU - A318/A319/A320/A321 TITLE:

Tail Number - MSN FSN: ALL

TASK: 72-40-00-290-801-A 72-40-00-06 CONF 03

72-40-00-290-801-A - Borescope Inspection of Combustion Section and Fuel Nozzles

MECH.

INSPECTION/ CHECK (b) Overserviceable limit extension for oxidation or missing material

MAXIMUM SERVICEABLE LIMITS Missing material in Area Y no more than 0.100 in. (2.54 mm) from Area X is permitted for 25 cycles.

INSP.

REMARKS This overserviceable limit extension is for a one-time continue-inservice application.

4. Examine the fuel nozzles as follows: Ref. Fig. Combustion Section Inspection (See Sheet 1, Sheet 3, Sheet 5 and Sheet 7) (a) Heat shield (aft surface) for (View M): -

Discoloratio Any amount of n or carbon discoloration or deposits carbon deposit is permitted.

-

Radial cracking

Any amount of radial cracks is permitted up to 0.100 in. (2.54 mm) long from the outer edge are permitted. Up to eight radial cracks are permitted for the full length of the aft surface.

JCP Title: BSI Combustion Chamber

CERTIFICATE OF TASK / INSPECTION COMPLETION: CERTIFIES THAT THE TASK / INSPECTION HAS BEEN COMPLETED TO THE REQUIRED STANDARD AND SUPPORTS THE FINAL MAINTENANCE RELEASE / CERTIFICATE OF RELEASE TO SERVICE

Page 15 of 44 PRINT DATE: Nov 05/2022

REV DATE: Nov 01/2022

JOB CARD AMM - AZU - A318/A319/A320/A321 TITLE:

Tail Number - MSN FSN: ALL

TASK: 72-40-00-290-801-A 72-40-00-06 CONF 03

72-40-00-290-801-A - Borescope Inspection of Combustion Section and Fuel Nozzles

MECH.

INSPECTION/ CHECK

MAXIMUM SERVICEABLE LIMITS

-

Circumfere ntial cracking

No circumferential cracking is permitted.

-

Oxidation or missing material for fuel nozzles (View M)

Up to 0.050 in. (1.27 mm) permitted at the outer Diameter (DIA) for 360 degrees.

INSP.

REMARKS

A CUP is defined as a location for a dome deflector plate and fuel nozzle. There are 19 cups in a combustor assembly. Cooling holes in the second row can be partially visible with this amount of oxidation or missing material.

-

JCP Title: BSI Combustion Chamber

Overserviceable limit extension for fuel nozzle oxidation

From 0.050 in. (1.27 mm) to 0.075 in. (1.90 mm) 360 degrees permitted at the outer DIA for 25 cycles.

Cooling holes in the second row can be fully visible with this amount of oxidation or missing material. This overserviceable limit extension is for a one-time continue-inservice application.

CERTIFICATE OF TASK / INSPECTION COMPLETION: CERTIFIES THAT THE TASK / INSPECTION HAS BEEN COMPLETED TO THE REQUIRED STANDARD AND SUPPORTS THE FINAL MAINTENANCE RELEASE / CERTIFICATE OF RELEASE TO SERVICE

Page 16 of 44 PRINT DATE: Nov 05/2022

REV DATE: Nov 01/2022

JOB CARD AMM - AZU - A318/A319/A320/A321 TITLE:

Tail Number - MSN FSN: ALL

TASK: 72-40-00-290-801-A 72-40-00-06 CONF 03

72-40-00-290-801-A - Borescope Inspection of Combustion Section and Fuel Nozzles

MECH.

INSPECTION/ CHECK

MAXIMUM SERVICEABLE LIMITS

INSP.

REMARKS

(b) Heat shield sharp lip for (View J + Section B-B): -

Oxidation or missing material for all fuel nozzles

Up to two areas of oxidation or missing material permitted for up to 0.30 in. (7.62 mm) of circumferential length each (any amount of depth). Distressed areas should be located at least 0.30 in. (7.62 mm) from each other.

-

Overserviceable limit extension for all fuel nozzles oxidation or missing material

Oxidation or missing material 0.30 in. (7.62 mm) of circumferential length in up to three locations is permitted for 25 cycles.

-

Discoloratio Any amount of n or carbon discoloration or deposits carbon deposit is permitted.

This overserviceable limit extension is for a one-time continue-inservice application.

(c) Heat shield conic surface and splitter for (View J + Section B-B):

JCP Title: BSI Combustion Chamber

CERTIFICATE OF TASK / INSPECTION COMPLETION: CERTIFIES THAT THE TASK / INSPECTION HAS BEEN COMPLETED TO THE REQUIRED STANDARD AND SUPPORTS THE FINAL MAINTENANCE RELEASE / CERTIFICATE OF RELEASE TO SERVICE

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REV DATE: Nov 01/2022

JOB CARD AMM - AZU - A318/A319/A320/A321 TITLE:

Tail Number - MSN FSN: ALL

TASK: 72-40-00-290-801-A 72-40-00-06 CONF 03

72-40-00-290-801-A - Borescope Inspection of Combustion Section and Fuel Nozzles

MECH.

INSPECTION/ CHECK

JCP Title: BSI Combustion Chamber

MAXIMUM SERVICEABLE LIMITS

-

Discoloratio Any amount of n or carbon discoloration or deposits carbon deposit is permitted.

-

Axial cracking (conic surface)

Any amount of axial cracks are permitted up to 0.23 in. (5.84 mm) length (entire length of the heat shield component).

-

Axial cracking (splitter)

Any amount of axial cracks are permitted.

-

Circumfere ntial cracking

No circumferential cracking is permitted.

-

Oxidation or missing material (conic surface)

No oxidation or missing material is permitted on conic surface.

-

Oxidation or missing material (splitter)

0.050 in. (1.27 mm) of oxidation or missing material for 360 degrees permitted on conic surface trailing edge.

INSP.

REMARKS

CERTIFICATE OF TASK / INSPECTION COMPLETION: CERTIFIES THAT THE TASK / INSPECTION HAS BEEN COMPLETED TO THE REQUIRED STANDARD AND SUPPORTS THE FINAL MAINTENANCE RELEASE / CERTIFICATE OF RELEASE TO SERVICE

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JOB CARD AMM - AZU - A318/A319/A320/A321 TITLE:

Tail Number - MSN FSN: ALL

TASK: 72-40-00-290-801-A 72-40-00-06 CONF 03

72-40-00-290-801-A - Borescope Inspection of Combustion Section and Fuel Nozzles

MECH.

INSPECTION/ CHECK -

Overserviceable limit extension for oxidation or missing material (splitter)

MAXIMUM SERVICEABLE LIMITS

REMARKS

Oxidation or missing material between 0.050 in. (1.27 mm) and 0.075 in. (1.90 mm) for 360 degrees is permitted for 25 cycles.

This overserviceable limit extension is for a one-time continue-inservice application.

INSP.

5. Examine the combustion inner liners as follows: Ref. Fig. Combustion Section Inspection (See Sheet 1 and Sheet 2)

JCP Title: BSI Combustion Chamber

(a) Circumferential cracks

There is no limit for the number of cracks permitted with this condition: They are a maximum of 0.5 in. (12.70 mm) in length.

(b) Overserviceable limit extension for circumferential cracks

Cracks between 0.5 in. (12.70 mm) and 1.0 in. (25.40 mm) in length are permitted for 25 cycles.

This overserviceable limit extension is for a one-time continue-inservice application.

CERTIFICATE OF TASK / INSPECTION COMPLETION: CERTIFIES THAT THE TASK / INSPECTION HAS BEEN COMPLETED TO THE REQUIRED STANDARD AND SUPPORTS THE FINAL MAINTENANCE RELEASE / CERTIFICATE OF RELEASE TO SERVICE

Page 19 of 44 PRINT DATE: Nov 05/2022

REV DATE: Nov 01/2022

JOB CARD AMM - AZU - A318/A319/A320/A321 Tail Number - MSN FSN: ALL

TITLE:

TASK: 72-40-00-290-801-A 72-40-00-06 CONF 03

72-40-00-290-801-A - Borescope Inspection of Combustion Section and Fuel Nozzles

MECH.

INSPECTION/ CHECK

JCP Title: BSI Combustion Chamber

MAXIMUM SERVICEABLE LIMITS

INSP.

REMARKS

(c) Axial or diagonal cracks

There is no limit to the number of cracks with this condition: Cracks not more than 0.5 in. (12.70 mm) in length are permitted.

(d) Overserviceable limit extension for axial or diagonal cracks

Cracks between 0.5 in. (12.70 mm) and 1.0 in. (25.40 mm) in length are permitted for 250 cycles.

This overserviceable limit extension is for a reduced interval, repeat inspection.

Cracks between 1.0 in. (25.40 mm) and 1.5 in. (38.10 mm) in length are permitted for 100 cycles.

This overserviceable limit extension is for a reduced interval, repeat inspection.

Cracks between 1.5 in. (38.10 mm) and 2.0 in. (50.80 mm) in length are permitted for 50 cycles.

This overserviceable limit extension is for a reduced interval, repeat inspection.

Cracks between 2.0 in. (50.80 mm) and 2.252 in. (57.20 mm) in length are permitted for 25 cycles.

This overserviceable limit extension is for a one-time continue-inservice application.

CERTIFICATE OF TASK / INSPECTION COMPLETION: CERTIFIES THAT THE TASK / INSPECTION HAS BEEN COMPLETED TO THE REQUIRED STANDARD AND SUPPORTS THE FINAL MAINTENANCE RELEASE / CERTIFICATE OF RELEASE TO SERVICE

Page 20 of 44 PRINT DATE: Nov 05/2022

REV DATE: Nov 01/2022

JOB CARD AMM - AZU - A318/A319/A320/A321 Tail Number - MSN FSN: ALL

TITLE:

TASK: 72-40-00-290-801-A 72-40-00-06 CONF 03

72-40-00-290-801-A - Borescope Inspection of Combustion Section and Fuel Nozzles

MECH.

INSPECTION/ CHECK

JCP Title: BSI Combustion Chamber

MAXIMUM SERVICEABLE LIMITS

INSP.

REMARKS

(e) Axial, diagonal and circumferential connected cracks

Connected cracks are NOTE:Continuepermitted if the in-service combined crack limits of length is less than the Para. C. limit of Para. C.(2)5. (2)5.(b) (b) and Para. C.(2)5. and Para. (d). To find the total C.(2)5.(d) length of connected apply also cracks, measure from for length the most forward of crack edge to the connected most aft crack edge. cracks. Connected cracks in the same cooling hole row are not added. Areas fully enclosed by connecting cracks must be 0.385 in.2 (248.39 mm2) or less.

(f) Overserviceable limit extension for axial, diagonal and circumferential connected cracks

Connected cracks area that is more than the serviceable limit is permitted for 25 cycles. Combined crack length is less than 25 cycles continue-in-service limit of Para. C.(2)5. (b) and Para. C.(2)5. (d).

This overserviceable limit extension is for a one-time continue-inservice application.

CERTIFICATE OF TASK / INSPECTION COMPLETION: CERTIFIES THAT THE TASK / INSPECTION HAS BEEN COMPLETED TO THE REQUIRED STANDARD AND SUPPORTS THE FINAL MAINTENANCE RELEASE / CERTIFICATE OF RELEASE TO SERVICE

Page 21 of 44 PRINT DATE: Nov 05/2022

REV DATE: Nov 01/2022

JOB CARD AMM - AZU - A318/A319/A320/A321 Tail Number - MSN FSN: ALL

TITLE:

TASK: 72-40-00-290-801-A 72-40-00-06 CONF 03

72-40-00-290-801-A - Borescope Inspection of Combustion Section and Fuel Nozzles

MECH.

INSPECTION/ CHECK

JCP Title: BSI Combustion Chamber

MAXIMUM SERVICEABLE LIMITS

(g) Burn through or missing metal

Burn through or missing metal areas are permitted with these conditions: A maximum permitted area for the nugget is not more than 0.01 in.2 (6.45 mm2) Total permitted burn through area on the inner liner is less than 0.385 in.2 (248.39 mm2).

(h) Overserviceable limit extension for burn through or missing metal

Burn through or missing metal that is more than the serviceable limit is permitted for 25 cycles.

(i) Distortion

Distortion is permitted with this condition: There is no limit to the amount permitted within 0.50 in. (12.70 mm) of the initial liner contour.

INSP.

REMARKS

This overserviceable limit extension is for a one-time continue-inservice application.

CERTIFICATE OF TASK / INSPECTION COMPLETION: CERTIFIES THAT THE TASK / INSPECTION HAS BEEN COMPLETED TO THE REQUIRED STANDARD AND SUPPORTS THE FINAL MAINTENANCE RELEASE / CERTIFICATE OF RELEASE TO SERVICE

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REV DATE: Nov 01/2022

JOB CARD AMM - AZU - A318/A319/A320/A321 Tail Number - MSN FSN: ALL

TITLE:

TASK: 72-40-00-290-801-A 72-40-00-06 CONF 03

72-40-00-290-801-A - Borescope Inspection of Combustion Section and Fuel Nozzles

MECH.

INSPECTION/ CHECK (j) Overserviceable limit extension for distortion

MAXIMUM SERVICEABLE LIMITS Distortion between 0.5 in. (12.70 mm) and 0.75 in. (19.05 mm) is permitted for 25 cycles.

INSP.

REMARKS This overserviceable limit extension is for a one-time continue-inservice application.

6. Examine the outer combustion liners as follows: Ref. Fig. Combustion Section Inspection (See Sheet 1 and 2)

JCP Title: BSI Combustion Chamber

(a) Circumferential cracks

There is no limit to the number of cracks with this condition: They are a maximum of 0.5 in. (12.70 mm) in length.

(b) Overserviceable limit extension for circumferential cracks

Cracks between 0.5 in. (12.70 mm) and 1.0 in. (25.40 mm) length are permitted for 25 cycles.

This overserviceable limit extension is for a one-time continue-inservice application.

CERTIFICATE OF TASK / INSPECTION COMPLETION: CERTIFIES THAT THE TASK / INSPECTION HAS BEEN COMPLETED TO THE REQUIRED STANDARD AND SUPPORTS THE FINAL MAINTENANCE RELEASE / CERTIFICATE OF RELEASE TO SERVICE

Page 23 of 44 PRINT DATE: Nov 05/2022

REV DATE: Nov 01/2022

JOB CARD AMM - AZU - A318/A319/A320/A321 Tail Number - MSN FSN: ALL

TITLE:

TASK: 72-40-00-290-801-A 72-40-00-06 CONF 03

72-40-00-290-801-A - Borescope Inspection of Combustion Section and Fuel Nozzles

MECH.

INSPECTION/ CHECK

JCP Title: BSI Combustion Chamber

MAXIMUM SERVICEABLE LIMITS

INSP.

REMARKS

(c) Axial or diagonal cracks

There is no limit to the number of cracks with this condition: Cracks not more than 0.5 in. (12.70 mm) in length are permitted.

(d) Overserviceable limit extension for axial or diagonal cracks

Cracks between 0.5 in. (12.70 mm) and 1.0 in. (25.40 mm) in length are permitted for 250 cycles.

This overserviceable limit extension is for a reduced interval, repeat inspection.

Cracks between 1.0 in. (25.40 mm) and 1.5 in. (38.10 mm) in length are permitted for 100 cycles.

This overserviceable limit extension is for a reduced interval, repeat inspection.

Cracks between 1.5 in. (38.10 mm) and 2.0 in. (50.80 mm) in length are permitted for 50 cycles.

This overserviceable limit extension is for a reduced interval, repeat inspection.

Cracks between 2.0 in. (50.80 mm) and 2.252 in. (57.20 mm) in length are permitted for 25 cycles.

This overserviceable limit extension is for a one-time continue-inservice application.

CERTIFICATE OF TASK / INSPECTION COMPLETION: CERTIFIES THAT THE TASK / INSPECTION HAS BEEN COMPLETED TO THE REQUIRED STANDARD AND SUPPORTS THE FINAL MAINTENANCE RELEASE / CERTIFICATE OF RELEASE TO SERVICE

Page 24 of 44 PRINT DATE: Nov 05/2022

REV DATE: Nov 01/2022

JOB CARD AMM - AZU - A318/A319/A320/A321 Tail Number - MSN FSN: ALL

TITLE:

TASK: 72-40-00-290-801-A 72-40-00-06 CONF 03

72-40-00-290-801-A - Borescope Inspection of Combustion Section and Fuel Nozzles

MECH.

INSPECTION/ CHECK

JCP Title: BSI Combustion Chamber

MAXIMUM SERVICEABLE LIMITS

INSP.

REMARKS

(e) Axial, diagonal and circumferential connected cracks

Connected cracks are NOTE:Continuepermitted if the in-service combined crack limits of length is less than the Para. C. limit of Para. C.(2)6. (2)6.(b) (b) and Para. C.(2)6. and Para. (d). To find the total C.(2)6.(d) length of connected apply also cracks, measure from for length the most forward of crack edge to the connected most aft crack edge. cracks. Connected cracks in the same cooling hole row are not added. Areas fully enclosed by connecting cracks are to be 0.385 in.2 (248.39 mm2) or less.

(f) Overserviceable limit extension for axial, diagonal and circumferential connected cracks

Connected cracks area that is more than the serviceable limit is permitted for 25 cycles. Combined crack length is less than 25 cycles continue-in-service limit of Para. C.(2)6. (b) and Para. C.(2)6. (d).

(g) Burn through or missing metal

Burn through or missing metal are permitted with these conditions:

This overserviceable limit extension is for a one-time continue-inservice application.

CERTIFICATE OF TASK / INSPECTION COMPLETION: CERTIFIES THAT THE TASK / INSPECTION HAS BEEN COMPLETED TO THE REQUIRED STANDARD AND SUPPORTS THE FINAL MAINTENANCE RELEASE / CERTIFICATE OF RELEASE TO SERVICE

Page 25 of 44 PRINT DATE: Nov 05/2022

REV DATE: Nov 01/2022

JOB CARD AMM - AZU - A318/A319/A320/A321 Tail Number - MSN FSN: ALL

TITLE:

TASK: 72-40-00-290-801-A 72-40-00-06 CONF 03

72-40-00-290-801-A - Borescope Inspection of Combustion Section and Fuel Nozzles

MECH.

INSPECTION/ CHECK

MAXIMUM SERVICEABLE LIMITS

INSP.

REMARKS

A maximum permitted area for the nugget is not more than 0.01 in.2 (6.45 mm2). Total permitted burn through area on the outer liner is less than 0.385 in.2 (248.39 mm2).

JCP Title: BSI Combustion Chamber

(h) Overserviceable limit extension for burn through or missing metal

Burn through or missing metal that is more than the serviceable limit is permitted for 25 cycles.

(i) Distortion

Distortion is permitted with this condition: There is no limit to the amount permitted within 0.5 in. (12.70 mm) of the initial liner contour.

(j) Overserviceable limit extension for distortion

Distortion between 0.5 in. (12.70 mm) and 0.75 in. (19.05 mm) is permitted for 25 cycles.

This overserviceable limit extension is for a one-time continue-inservice application.

This overserviceable limit extension is for a one-time continue-inservice application.

CERTIFICATE OF TASK / INSPECTION COMPLETION: CERTIFIES THAT THE TASK / INSPECTION HAS BEEN COMPLETED TO THE REQUIRED STANDARD AND SUPPORTS THE FINAL MAINTENANCE RELEASE / CERTIFICATE OF RELEASE TO SERVICE

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REV DATE: Nov 01/2022

JOB CARD AMM - AZU - A318/A319/A320/A321 Tail Number - MSN FSN: ALL

TITLE:

TASK: 72-40-00-290-801-A 72-40-00-06 CONF 03

72-40-00-290-801-A - Borescope Inspection of Combustion Section and Fuel Nozzles

MECH.

INSPECTION/ CHECK

MAXIMUM SERVICEABLE LIMITS

INSP.

REMARKS

7. Examine the leading edge of the HPT stage 1 nozzle airfoil as follows: (a) Missing thermal barrier coating

There is no limit to the quantity of thermal barrier coating that can be missing.

(b) Cracks that connect nose holes

There is no limit to the number permitted if: Not more than 0.175 in. (4.44 mm) in length Cracks are not connected If no metal is missing.

(c) Cracks that There is no limit to extend from a the number permitted nose hole(s) but if no metal is missing. do not connect with another nose hole(s) (d) Burns or erosion (the surface is burned and no holes through the parent metal)

JCP Title: BSI Combustion Chamber

The total damage is less than 0.175 in. (4.44 mm) in DIA for each vane.

CERTIFICATE OF TASK / INSPECTION COMPLETION: CERTIFIES THAT THE TASK / INSPECTION HAS BEEN COMPLETED TO THE REQUIRED STANDARD AND SUPPORTS THE FINAL MAINTENANCE RELEASE / CERTIFICATE OF RELEASE TO SERVICE

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REV DATE: Nov 01/2022

JOB CARD AMM - AZU - A318/A319/A320/A321 Tail Number - MSN FSN: ALL

TITLE:

TASK: 72-40-00-290-801-A 72-40-00-06 CONF 03

72-40-00-290-801-A - Borescope Inspection of Combustion Section and Fuel Nozzles

MECH.

INSPECTION/ CHECK

MAXIMUM SERVICEABLE LIMITS

INSP.

REMARKS

There are no more than two burned vanes in a 90 degree arc. (e) Overserviceable limit extension for HPT stage 1 nozzle leading edge 1_ Leading edge metal that is missing because of cracks or burn through

As much as 0.14 in.2 (90.32 mm2) for each airfoil with a maximum of two vanes in a 90 degree arc is permitted for 25 cycles.

This overserviceable limit extension is for a one-time continue -inservice application.

SUBTASK 72-40-00-080-050-A D. When the inspection is completed, remove the BORESCOPE DIA 3.8 MM (0.15 IN) (or alternate). SUBTASK 72-40-00-420-050-A E. Install the borescope plugs and igniters in ports N, Q, O and P as follows:

NOTE:

(1)

JCP Title: BSI Combustion Chamber

When you install the borescope plug, make sure that the anti-rotation sleeve or sleeves on the borescope plug are correctly engaged with the slots on the borescope boss before you fully tighten the plug. Ref. Fig. CDN Borescope Plugs (PRE and POST SB 72-0225)

Do a visual inspection of the borescope plugs and the borescope ports N and Q Ref. AMM TASK 72-00-00-290-812.

CERTIFICATE OF TASK / INSPECTION COMPLETION: CERTIFIES THAT THE TASK / INSPECTION HAS BEEN COMPLETED TO THE REQUIRED STANDARD AND SUPPORTS THE FINAL MAINTENANCE RELEASE / CERTIFICATE OF RELEASE TO SERVICE

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Tail Number - MSN FSN: ALL

REV DATE: Nov 01/2022 TASK: 72-40-00-290-801-A 72-40-00-06 CONF 03

72-40-00-290-801-A - Borescope Inspection of Combustion Section and Fuel Nozzles

MECH.

(2)

Remove the identification tags from the borescope plugs N and Q before the installation of each borescope plug.

(3)

Apply layer of tiodize T8E-H grease (Material Ref. CP2961) to the threads, pressure faces and ratcheting mechanism.

NOTE: (4)

You can use Never Seez-Pure Nickel, Special (Material Ref. CP2619) as an alternative.

Install the borescope plugs in the combustor borescope ports N and Q.

NOTE:

The use of penetrant (Material Ref. CP2691) sprayed into the ratcheting mechanism is allowed to release it. This should be done before you replace the borescope plug.

(5)

TORQUE the borescope plugs to between 97 and 113 lbf.in (1.10 and 1.28 m.daN).

(6)

After the borescope plug is installed: (a)

(b)

Do a check of the borescope plug: 1

Do a visual check of the borescope plug and make sure that the anti-rotation sleeve or sleeves are fully engaged with the slots on the borescope boss.

2

Do a check to make sure that the head of the borescope plug is fully installed against the borescope boss.

If one or two of these conditions are not met, the ratcheting feature of the plug can be seized or locked. Do the steps that follow: 1

JCP Title: BSI Combustion Chamber

INSP.

Apply penetrant (Material Ref. CP2691) directly in between the locking ring and the head of the borescope plug.

CERTIFICATE OF TASK / INSPECTION COMPLETION: CERTIFIES THAT THE TASK / INSPECTION HAS BEEN COMPLETED TO THE REQUIRED STANDARD AND SUPPORTS THE FINAL MAINTENANCE RELEASE / CERTIFICATE OF RELEASE TO SERVICE

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TITLE:

REV DATE: Nov 01/2022 TASK: 72-40-00-290-801-A 72-40-00-06 CONF 03

72-40-00-290-801-A - Borescope Inspection of Combustion Section and Fuel Nozzles

MECH.

(c)

(7)

JCP Title: BSI Combustion Chamber

2

Apply torque again to the plug until the plug begins to rotate freely.

3

TORQUE the borescope plug to between 97 and 113 lbf.in (1.10 and 1.28 m.daN).

INSP.

Do a visual check again, before you continue: 1

Do a visual check of the borescope plug and make sure that the anti-rotation sleeve or sleeves are fully engaged with the slots on the borescope boss.

2

Do a check to make sure that the head of the borescope plug is fully installed against the borescope boss.

(d)

If above conditions cannot be met, replace the borescope plug.

(e)

Use the BORESCOPE DIA 3.8 MM (0.15 IN) to check the condition of the borescope plug, if there is no direct visual access.

If the igniters are removed, install them as follows: (a)

Do a visual inspection of the igniters and the igniter ports O and P Ref. AMM TASK 72-00-00-290-812 and Ref. AMM TASK 74-21-10-210-801.

(b)

Remove the identification tags from the igniters before the installation of each igniter.

(c)

Install no. 1 (left) igniter in the igniter port P Ref. AMM TASK 74-21-10-400-802.

(d)

Install no. 2 (right) igniter in the igniter port O Ref. AMM TASK 74-21-10-400-803.

(e)

TORQUE the igniter plugs to between 262 and 307 lbf.in (2.96 and 3.47 m.daN).

CERTIFICATE OF TASK / INSPECTION COMPLETION: CERTIFIES THAT THE TASK / INSPECTION HAS BEEN COMPLETED TO THE REQUIRED STANDARD AND SUPPORTS THE FINAL MAINTENANCE RELEASE / CERTIFICATE OF RELEASE TO SERVICE

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TITLE:

REV DATE: Nov 01/2022 TASK: 72-40-00-290-801-A 72-40-00-06 CONF 03

72-40-00-290-801-A - Borescope Inspection of Combustion Section and Fuel Nozzles

MECH.

5.

INSP.

Close-up SUBTASK 72-40-00-410-052-A A. Close Access (1)

Make sure that the work area is clean and clear of tools and other items.

(2)

Close the thrust reverser cowl-doors Ref. AMM TASK 78-36-00-410-806: (a)

FOR 4020KM1 (POWER PLANT-DEMOUNTABLE, ENGINE 1) 451AL, 452AR

(b)

FOR 4020KM2 (POWER PLANT-DEMOUNTABLE, ENGINE 2) 461AL, 462AR.

SUBTASK 72-40-00-440-051-A B. Do the reactivation of the thrust reverser after maintenance Ref. AMM TASK 78-30-00-440-809. SUBTASK 72-40-00-410-053-A C. Close Access (1)

Remove the access platform(s).

(2)

Close the fan cowl doors Ref. AMM TASK 71-13-00-410-803:

(3)

JCP Title: BSI Combustion Chamber

(a)

FOR 4020KM1 (POWER PLANT-DEMOUNTABLE, ENGINE 1) 437AL, 438AR.

(b)

FOR 4020KM2 (POWER PLANT-DEMOUNTABLE, ENGINE 2) 447AL, 448AR.

Remove the WARNING NOTICE(S).

CERTIFICATE OF TASK / INSPECTION COMPLETION: CERTIFIES THAT THE TASK / INSPECTION HAS BEEN COMPLETED TO THE REQUIRED STANDARD AND SUPPORTS THE FINAL MAINTENANCE RELEASE / CERTIFICATE OF RELEASE TO SERVICE

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REV DATE: Nov 01/2022 TASK: 72-40-00-290-801-A 72-40-00-06 CONF 03

72-40-00-290-801-A - Borescope Inspection of Combustion Section and Fuel Nozzles

MECH.

INSP.

A

A

A

A

Figure 72-40-00-991-00100-03-A (SHEET 1/2) - Combustion Section Borescope Port Locations ** ON A/C FSN ALL

JCP Title: BSI Combustion Chamber

CERTIFICATE OF TASK / INSPECTION COMPLETION: CERTIFIES THAT THE TASK / INSPECTION HAS BEEN COMPLETED TO THE REQUIRED STANDARD AND SUPPORTS THE FINAL MAINTENANCE RELEASE / CERTIFICATE OF RELEASE TO SERVICE

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REV DATE: Nov 01/2022 TASK: 72-40-00-290-801-A 72-40-00-06 CONF 03

72-40-00-290-801-A - Borescope Inspection of Combustion Section and Fuel Nozzles

MECH.

INSP.

A A Figure 72-40-00-991-00100-03-A (SHEET 2/2) - Combustion Section Borescope Port Locations ** ON A/C FSN ALL

JCP Title: BSI Combustion Chamber

CERTIFICATE OF TASK / INSPECTION COMPLETION: CERTIFIES THAT THE TASK / INSPECTION HAS BEEN COMPLETED TO THE REQUIRED STANDARD AND SUPPORTS THE FINAL MAINTENANCE RELEASE / CERTIFICATE OF RELEASE TO SERVICE

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REV DATE: Nov 01/2022 TASK: 72-40-00-290-801-A 72-40-00-06 CONF 03

72-40-00-290-801-A - Borescope Inspection of Combustion Section and Fuel Nozzles

MECH.

INSP.

A

B D

F G H

B D

J

C E

A

Figure 72-40-00-991-00200-03-A (SHEET 1/8) - Combustion Section Inspection ** ON A/C FSN ALL

JCP Title: BSI Combustion Chamber

CERTIFICATE OF TASK / INSPECTION COMPLETION: CERTIFIES THAT THE TASK / INSPECTION HAS BEEN COMPLETED TO THE REQUIRED STANDARD AND SUPPORTS THE FINAL MAINTENANCE RELEASE / CERTIFICATE OF RELEASE TO SERVICE

Page 34 of 44 PRINT DATE: Nov 05/2022

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Tail Number - MSN FSN: ALL

REV DATE: Nov 01/2022 TASK: 72-40-00-290-801-A 72-40-00-06 CONF 03

72-40-00-290-801-A - Borescope Inspection of Combustion Section and Fuel Nozzles

MECH.

B

INSP.

C

D

E

F W D

Figure 72-40-00-991-00200-03-A (SHEET 2/8) - Combustion Section Inspection ** ON A/C FSN ALL

JCP Title: BSI Combustion Chamber

CERTIFICATE OF TASK / INSPECTION COMPLETION: CERTIFIES THAT THE TASK / INSPECTION HAS BEEN COMPLETED TO THE REQUIRED STANDARD AND SUPPORTS THE FINAL MAINTENANCE RELEASE / CERTIFICATE OF RELEASE TO SERVICE

Page 35 of 44 PRINT DATE: Nov 05/2022

JOB CARD AMM - AZU - A318/A319/A320/A321 Tail Number - MSN FSN: ALL

TITLE:

REV DATE: Nov 01/2022 TASK: 72-40-00-290-801-A 72-40-00-06 CONF 03

72-40-00-290-801-A - Borescope Inspection of Combustion Section and Fuel Nozzles

MECH.

INSP.

F

Figure 72-40-00-991-00200-03-A (SHEET 3/8) - Combustion Section Inspection ** ON A/C FSN ALL

JCP Title: BSI Combustion Chamber

CERTIFICATE OF TASK / INSPECTION COMPLETION: CERTIFIES THAT THE TASK / INSPECTION HAS BEEN COMPLETED TO THE REQUIRED STANDARD AND SUPPORTS THE FINAL MAINTENANCE RELEASE / CERTIFICATE OF RELEASE TO SERVICE

Page 36 of 44 PRINT DATE: Nov 05/2022

JOB CARD AMM - AZU - A318/A319/A320/A321 Tail Number - MSN FSN: ALL

TITLE:

REV DATE: Nov 01/2022 TASK: 72-40-00-290-801-A 72-40-00-06 CONF 03

72-40-00-290-801-A - Borescope Inspection of Combustion Section and Fuel Nozzles

MECH.

INSP.

G

H

Figure 72-40-00-991-00200-03-A (SHEET 4/8) - Combustion Section Inspection ** ON A/C FSN ALL

JCP Title: BSI Combustion Chamber

CERTIFICATE OF TASK / INSPECTION COMPLETION: CERTIFIES THAT THE TASK / INSPECTION HAS BEEN COMPLETED TO THE REQUIRED STANDARD AND SUPPORTS THE FINAL MAINTENANCE RELEASE / CERTIFICATE OF RELEASE TO SERVICE

Page 37 of 44 PRINT DATE: Nov 05/2022

JOB CARD AMM - AZU - A318/A319/A320/A321 Tail Number - MSN FSN: ALL

TITLE:

REV DATE: Nov 01/2022 TASK: 72-40-00-290-801-A 72-40-00-06 CONF 03

72-40-00-290-801-A - Borescope Inspection of Combustion Section and Fuel Nozzles

MECH.

INSP.

M B

K A

A B

J

K

Figure 72-40-00-991-00200-03-A (SHEET 5/8) - Combustion Section Inspection ** ON A/C FSN ALL

JCP Title: BSI Combustion Chamber

CERTIFICATE OF TASK / INSPECTION COMPLETION: CERTIFIES THAT THE TASK / INSPECTION HAS BEEN COMPLETED TO THE REQUIRED STANDARD AND SUPPORTS THE FINAL MAINTENANCE RELEASE / CERTIFICATE OF RELEASE TO SERVICE

Page 38 of 44 PRINT DATE: Nov 05/2022

JOB CARD AMM - AZU - A318/A319/A320/A321 Tail Number - MSN FSN: ALL

TITLE:

REV DATE: Nov 01/2022 TASK: 72-40-00-290-801-A 72-40-00-06 CONF 03

72-40-00-290-801-A - Borescope Inspection of Combustion Section and Fuel Nozzles

MECH.

INSP.

A A

Figure 72-40-00-991-00200-03-A (SHEET 6/8) - Combustion Section Inspection ** ON A/C FSN ALL

JCP Title: BSI Combustion Chamber

CERTIFICATE OF TASK / INSPECTION COMPLETION: CERTIFIES THAT THE TASK / INSPECTION HAS BEEN COMPLETED TO THE REQUIRED STANDARD AND SUPPORTS THE FINAL MAINTENANCE RELEASE / CERTIFICATE OF RELEASE TO SERVICE

Page 39 of 44 PRINT DATE: Nov 05/2022

JOB CARD AMM - AZU - A318/A319/A320/A321 Tail Number - MSN FSN: ALL

TITLE:

REV DATE: Nov 01/2022 TASK: 72-40-00-290-801-A 72-40-00-06 CONF 03

72-40-00-290-801-A - Borescope Inspection of Combustion Section and Fuel Nozzles

MECH.

INSP.

L

B B

L

Figure 72-40-00-991-00200-03-A (SHEET 7/8) - Combustion Section Inspection ** ON A/C FSN ALL

JCP Title: BSI Combustion Chamber

CERTIFICATE OF TASK / INSPECTION COMPLETION: CERTIFIES THAT THE TASK / INSPECTION HAS BEEN COMPLETED TO THE REQUIRED STANDARD AND SUPPORTS THE FINAL MAINTENANCE RELEASE / CERTIFICATE OF RELEASE TO SERVICE

Page 40 of 44 PRINT DATE: Nov 05/2022

JOB CARD AMM - AZU - A318/A319/A320/A321 Tail Number - MSN FSN: ALL

TITLE:

REV DATE: Nov 01/2022 TASK: 72-40-00-290-801-A 72-40-00-06 CONF 03

72-40-00-290-801-A - Borescope Inspection of Combustion Section and Fuel Nozzles

MECH.

INSP.

M

Figure 72-40-00-991-00200-03-A (SHEET 8/8) - Combustion Section Inspection ** ON A/C FSN ALL

JCP Title: BSI Combustion Chamber

CERTIFICATE OF TASK / INSPECTION COMPLETION: CERTIFIES THAT THE TASK / INSPECTION HAS BEEN COMPLETED TO THE REQUIRED STANDARD AND SUPPORTS THE FINAL MAINTENANCE RELEASE / CERTIFICATE OF RELEASE TO SERVICE

Page 41 of 44 PRINT DATE: Nov 05/2022

JOB CARD AMM - AZU - A318/A319/A320/A321 Tail Number - MSN FSN: ALL

TITLE:

REV DATE: Nov 01/2022 TASK: 72-40-00-290-801-A 72-40-00-06 CONF 03

72-40-00-290-801-A - Borescope Inspection of Combustion Section and Fuel Nozzles

MECH.

INSP.

K

K

K K

Figure 72-40-00-991-00300-03-A (SHEET 1) - HPT Stage One Nozzle Airfoil Inspection ** ON A/C FSN ALL

JCP Title: BSI Combustion Chamber

CERTIFICATE OF TASK / INSPECTION COMPLETION: CERTIFIES THAT THE TASK / INSPECTION HAS BEEN COMPLETED TO THE REQUIRED STANDARD AND SUPPORTS THE FINAL MAINTENANCE RELEASE / CERTIFICATE OF RELEASE TO SERVICE

Page 42 of 44 PRINT DATE: Nov 05/2022

JOB CARD AMM - AZU - A318/A319/A320/A321 Tail Number - MSN FSN: ALL

TITLE:

REV DATE: Nov 01/2022 TASK: 72-40-00-290-801-A 72-40-00-06 CONF 03

72-40-00-290-801-A - Borescope Inspection of Combustion Section and Fuel Nozzles

MECH.

INSP.

Figure 72-40-00-991-00400-03-A (SHEET 1/2) - CDN Borescope Plugs (PRE and POST SB 72-0225) ** ON A/C FSN ALL

JCP Title: BSI Combustion Chamber

CERTIFICATE OF TASK / INSPECTION COMPLETION: CERTIFIES THAT THE TASK / INSPECTION HAS BEEN COMPLETED TO THE REQUIRED STANDARD AND SUPPORTS THE FINAL MAINTENANCE RELEASE / CERTIFICATE OF RELEASE TO SERVICE

Page 43 of 44 PRINT DATE: Nov 05/2022

JOB CARD AMM - AZU - A318/A319/A320/A321 Tail Number - MSN FSN: ALL

TITLE:

REV DATE: Nov 01/2022 TASK: 72-40-00-290-801-A 72-40-00-06 CONF 03

72-40-00-290-801-A - Borescope Inspection of Combustion Section and Fuel Nozzles

MECH.

INSP.

Figure 72-40-00-991-00400-03-A (SHEET 2/2) - CDN Borescope Plugs (PRE and POST SB 72-0225) ** ON A/C FSN ALL © *** END OF CARD ***

JCP Title: BSI Combustion Chamber

CERTIFICATE OF TASK / INSPECTION COMPLETION: CERTIFIES THAT THE TASK / INSPECTION HAS BEEN COMPLETED TO THE REQUIRED STANDARD AND SUPPORTS THE FINAL MAINTENANCE RELEASE / CERTIFICATE OF RELEASE TO SERVICE

Page 44 of 44 PRINT DATE: Nov 05/2022