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A380 TECHNICAL TRAINING MANUAL MAINTENANCE COURSE - T1 & T2 (RR / Metric) LEVEL I - ATA 30 Ice & Rain Protection
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A380 TECHNICAL TRAINING MANUAL
LEVEL I - ATA 30 ICE & RAIN PROTECTION
L0Y06082 - L0DT0T0
Ice and Rain Protection System Introduction . . . . . . . . . . . . . . . . . . . 2 Wing Ice Protection System Presentation . . . . . . . . . . . . . . . . . . . . . 14 Engine Air Intake Ice Protection Presentation . . . . . . . . . . . . . . . . . . 18 Windshield Anti-Icing / Defogging & Rain Prot Presentation . . . . . 24 Potable & Waste Water Ice Protection Presentation . . . . . . . . . . . . . 32 Ice Detection System Presentation . . . . . . . . . . . . . . . . . . . . . . . . . . 36
MAINTENANCE COURSE - T1 & T2 (RR / Metric) LEVEL I - ATA 30 Ice & Rain Protection
TABLE OF CONTENTS
Mar 21, 2006 Page 1
A380 TECHNICAL TRAINING MANUAL
ICE AND RAIN PROTECTION SYSTEM INTRODUCTION General
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The aircraft can be operated without restriction in icing conditions or heavy rain thanks to the Ice and Rain Protection system. Hot air or electrical heating protect critical areas of the aircraft. The different sub systems of the Ice and Rain Protection system are: - the wing ice protection, - the engine air intake ice protection, - the windshield anti-icing, defogging and rain protection, - the potable and waste water ice protection, - the ice detection.
MAINTENANCE COURSE - T1 & T2 (RR / Metric) LEVEL I - ATA 30 Ice & Rain Protection
ICE AND RAIN PROTECTION SYSTEM INTRODUCTION
Mar 15, 2006 Page 2
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A380 TECHNICAL TRAINING MANUAL
GENERAL MAINTENANCE COURSE - T1 & T2 (RR / Metric) LEVEL I - ATA 30 Ice & Rain Protection
ICE AND RAIN PROTECTION SYSTEM INTRODUCTION
Mar 15, 2006 Page 3
A380 TECHNICAL TRAINING MANUAL
ICE AND RAIN PROTECTION SYSTEM INTRODUCTION Wing Ice Protection
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During icing conditions the slat Nº4 of each wing is heated with hot air from the pneumatic system through two Wing Anti-Ice Valves (WAIVs). Only one valve is activated when the system is in operation. (for each flight the valve activated changes to avoid hidden failure cases). Two Anti-Ice Control Units (AICUs) control the WAIVs.
MAINTENANCE COURSE - T1 & T2 (RR / Metric) LEVEL I - ATA 30 Ice & Rain Protection
ICE AND RAIN PROTECTION SYSTEM INTRODUCTION
Mar 15, 2006 Page 4
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A380 TECHNICAL TRAINING MANUAL
WING ICE PROTECTION MAINTENANCE COURSE - T1 & T2 (RR / Metric) LEVEL I - ATA 30 Ice & Rain Protection
ICE AND RAIN PROTECTION SYSTEM INTRODUCTION
Mar 15, 2006 Page 5
A380 TECHNICAL TRAINING MANUAL
ICE AND RAIN PROTECTION SYSTEM INTRODUCTION Engine Air Intake Ice Protection
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Engine air intake ice protection protects the engine during operation in ambient icing conditions. Hot air bled from each engine compressor is used to heat the air intake lip via an engine Anti-Ice Valve. This maintains the inlet duct of the engine free of harmful accumulation of ice. The four valves are controlled by two AICUs.
MAINTENANCE COURSE - T1 & T2 (RR / Metric) LEVEL I - ATA 30 Ice & Rain Protection
ICE AND RAIN PROTECTION SYSTEM INTRODUCTION
Mar 15, 2006 Page 6
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A380 TECHNICAL TRAINING MANUAL
ENGINE AIR INTAKE ICE PROTECTION MAINTENANCE COURSE - T1 & T2 (RR / Metric) LEVEL I - ATA 30 Ice & Rain Protection
ICE AND RAIN PROTECTION SYSTEM INTRODUCTION
Mar 15, 2006 Page 7
A380 TECHNICAL TRAINING MANUAL
ICE AND RAIN PROTECTION SYSTEM INTRODUCTION Windshield Anti-Icing - Defogging and Rain Protection
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Ice protection for windshield and demisting for windows is electrically achieved. Window heat is automatically initiated at first engine start-up. In case of severe icing conditions on ground, automatic operation can be overridden by means of the PROBE/WINDOW HEAT pushbutton switch. The two AICUs, one for each side, monitor and control the heaters, and include an overheat protection. Rain removal from the windshield is done by two independent wipers and in heavy rain, by a rain repellent system. The systems are controlled from the overhead panel. The rain repellent is inhibited on the ground when the engines are stopped.
MAINTENANCE COURSE - T1 & T2 (RR / Metric) LEVEL I - ATA 30 Ice & Rain Protection
ICE AND RAIN PROTECTION SYSTEM INTRODUCTION
Mar 15, 2006 Page 8
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A380 TECHNICAL TRAINING MANUAL
WINDSHIELD ANTI-ICING - DEFOGGING AND RAIN PROTECTION MAINTENANCE COURSE - T1 & T2 (RR / Metric) LEVEL I - ATA 30 Ice & Rain Protection
ICE AND RAIN PROTECTION SYSTEM INTRODUCTION
Mar 15, 2006 Page 9
A380 TECHNICAL TRAINING MANUAL
ICE AND RAIN PROTECTION SYSTEM INTRODUCTION Potable and Waste Water Ice Protection
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An automatic ice protection of the water lines is installed to prevent ice formation. The system is an anti-ice system, but not a de-icing system. The system has 3 subsystems: the waste water ice protection, the water servicing panels heating and the potable water ice protection. Two Ice Protection Control Units (IPCUs) control the electrical heating elements in the related area.
MAINTENANCE COURSE - T1 & T2 (RR / Metric) LEVEL I - ATA 30 Ice & Rain Protection
ICE AND RAIN PROTECTION SYSTEM INTRODUCTION
Mar 15, 2006 Page 10
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A380 TECHNICAL TRAINING MANUAL
POTABLE AND WASTE WATER ICE PROTECTION MAINTENANCE COURSE - T1 & T2 (RR / Metric) LEVEL I - ATA 30 Ice & Rain Protection
ICE AND RAIN PROTECTION SYSTEM INTRODUCTION
Mar 15, 2006 Page 11
A380 TECHNICAL TRAINING MANUAL
ICE AND RAIN PROTECTION SYSTEM INTRODUCTION Ice Detection
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The purpose of the ice detection system is to give the crew an indication of the icing conditions. In addition the ice detection system automatically controls the Wing Anti Ice and Nacelle Anti Ice systems. The system is composed of two separate ice detectors installed symmetrically on the upper part of the nose part of the fuselage below the rear fixed windows. Two external visual ice indicators installed between the two windshields tell the crew that icing conditions are encountered, by formation of ice on lighted visual indicators.
MAINTENANCE COURSE - T1 & T2 (RR / Metric) LEVEL I - ATA 30 Ice & Rain Protection
ICE AND RAIN PROTECTION SYSTEM INTRODUCTION
Mar 15, 2006 Page 12
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A380 TECHNICAL TRAINING MANUAL
ICE DETECTION MAINTENANCE COURSE - T1 & T2 (RR / Metric) LEVEL I - ATA 30 Ice & Rain Protection
ICE AND RAIN PROTECTION SYSTEM INTRODUCTION
Mar 15, 2006 Page 13
A380 TECHNICAL TRAINING MANUAL
WING ICE PROTECTION SYSTEM PRESENTATION General
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During icing conditions the slat Nº4 of each wing is heated with hot air from the pneumatic system through two redundant Wing Anti-Ice Valves (WAIVs). Each valve operates alternatively with a flight cycle. Two Anti-Ice Control Units (AICUs) control the WAIVs.
MAINTENANCE COURSE - T1 & T2 (RR / Metric) LEVEL I - ATA 30 Ice & Rain Protection
WING ICE PROTECTION SYSTEM PRESENTATION
Mar 15, 2006 Page 14
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A380 TECHNICAL TRAINING MANUAL
GENERAL MAINTENANCE COURSE - T1 & T2 (RR / Metric) LEVEL I - ATA 30 Ice & Rain Protection
WING ICE PROTECTION SYSTEM PRESENTATION
Mar 15, 2006 Page 15
A380 TECHNICAL TRAINING MANUAL
WING ICE PROTECTION SYSTEM PRESENTATION Operation, Control and Monitoring
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Hot air is supplied to each wing via two redundant wing anti-ice valves located in each wing leading edge. Hot air is bled in the slat via piccolo tubes. The valves are pneumatically operated and electrically controlled. In case of loss of electrical power supply or lack of pressure, the valve closes. The valves are controlled by the AICUs and by two pushbuttons on the "ANTI-ICE" control panel, located on the overhead panel. The system operates automatically and in flight only. The "FAULT" light comes on in case of abnormal operation. On ground and only for test purposes, the WING pushbutton electrically opens the valves for 30 seconds to prevent heat damage.
MAINTENANCE COURSE - T1 & T2 (RR / Metric) LEVEL I - ATA 30 Ice & Rain Protection
WING ICE PROTECTION SYSTEM PRESENTATION
Mar 15, 2006 Page 16
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A380 TECHNICAL TRAINING MANUAL
OPERATION, CONTROL AND MONITORING MAINTENANCE COURSE - T1 & T2 (RR / Metric) LEVEL I - ATA 30 Ice & Rain Protection
WING ICE PROTECTION SYSTEM PRESENTATION
Mar 15, 2006 Page 17
A380 TECHNICAL TRAINING MANUAL
ENGINE AIR INTAKE ICE PROTECTION PRESENTATION General
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The engine air intake anti-ice protection is automatically selected when icing conditions are expected on ground or in flight. The function of the engine air intake ice protection is to supply HP3 air to heat the inlet lip during icing conditions.
MAINTENANCE COURSE - T1 & T2 (RR / Metric) LEVEL I - ATA 30 Ice & Rain Protection
ENGINE AIR INTAKE ICE PROTECTION PRESENTATION
Mar 15, 2006 Page 18
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A380 TECHNICAL TRAINING MANUAL
GENERAL MAINTENANCE COURSE - T1 & T2 (RR / Metric) LEVEL I - ATA 30 Ice & Rain Protection
ENGINE AIR INTAKE ICE PROTECTION PRESENTATION
Mar 15, 2006 Page 19
A380 TECHNICAL TRAINING MANUAL
ENGINE AIR INTAKE ICE PROTECTION PRESENTATION Bleed Air Source
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Hot air used to heat the engine air intake lip is bled from the third stage of the engine High Pressure Compressor (HP3) through an Shut-Off valve (SOV) and a pressure Regulating Anti Ice Valve (RAIV). For each engine, hot bleed air is ducted via a pressure regulating and a shut-off valve. The SOV is pneumatically operated, electrically controlled via a solenoid and spring loaded open. Upon solenoid energization the SOV will close. When the engine is running and the solenoid is de-energized, the RAIV regulates the air pressure. In case of electrical loss the SOV will open.
MAINTENANCE COURSE - T1 & T2 (RR / Metric) LEVEL I - ATA 30 Ice & Rain Protection
ENGINE AIR INTAKE ICE PROTECTION PRESENTATION
Mar 15, 2006 Page 20
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A380 TECHNICAL TRAINING MANUAL
BLEED AIR SOURCE MAINTENANCE COURSE - T1 & T2 (RR / Metric) LEVEL I - ATA 30 Ice & Rain Protection
ENGINE AIR INTAKE ICE PROTECTION PRESENTATION
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A380 TECHNICAL TRAINING MANUAL
ENGINE AIR INTAKE ICE PROTECTION PRESENTATION Control And Indicating
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The controls and indicating are located on the overhead panel on the anti-ice. For each engine, the Anti-Ice Control Unit (AICU) controls the valves. Automatic operation of the valves is selected by the AUTO MODE pushbutton. The system can be manually activated by means of the ANTI ICE/ENG pushbuttons (through the AICUs). In case of abnormal operation the pushbutton FAULT light comes on. If at least one of the 4 engine anti-ice systems is on, the indication is displayed on the Centralized Display System (CDS).
MAINTENANCE COURSE - T1 & T2 (RR / Metric) LEVEL I - ATA 30 Ice & Rain Protection
ENGINE AIR INTAKE ICE PROTECTION PRESENTATION
Mar 15, 2006 Page 22
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A380 TECHNICAL TRAINING MANUAL
CONTROL AND INDICATING MAINTENANCE COURSE - T1 & T2 (RR / Metric) LEVEL I - ATA 30 Ice & Rain Protection
ENGINE AIR INTAKE ICE PROTECTION PRESENTATION
Mar 15, 2006 Page 23
A380 TECHNICAL TRAINING MANUAL
WINDSHIELD ANTI-ICING / DEFOGGING & RAIN PROT PRESENTATION Cockpit Windows Anti-Ice Defogging and Rain Protection
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The anti-icing and defogging system keeps windshield and windows in icing or foggy conditions. This is achieved by electrical heating of the windshield and windows by the Anti-Ice Control Units (AICUs). Rain removal from the windshield is done by two independent wipers and a rain repellent liquid, stored in a pressurized bottle, which may be sprayed onto the windshield to improve visibility.
MAINTENANCE COURSE - T1 & T2 (RR / Metric) LEVEL I - ATA 30 Ice & Rain Protection
WINDSHIELD ANTI-ICING / DEFOGGING & RAIN PROT PRESENTATION
Mar 15, 2006 Page 24
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A380 TECHNICAL TRAINING MANUAL
COCKPIT WINDOWS ANTI-ICE DEFOGGING AND RAIN PROTECTION MAINTENANCE COURSE - T1 & T2 (RR / Metric) LEVEL I - ATA 30 Ice & Rain Protection
WINDSHIELD ANTI-ICING / DEFOGGING & RAIN PROT PRESENTATION
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A380 TECHNICAL TRAINING MANUAL
WINDSHIELD ANTI-ICING / DEFOGGING & RAIN PROT PRESENTATION Anti-Ice And Defogging Control and Monitoring
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Heating is automatically initiated at first engine start-up and stops at last engine shut down. The PROBE / WINDOW HEAT pushbutton allows manual selection. Monitoring and overheat protection control are achieved by two Anti-Ice Control Units (AICUs), one for each side. For the windshield, there are 2 heating levels, low on ground and normal in flight. For other windows there is only one heating level. Ground/flight information is given by the status of the landing gear. The AICUs control the windshield and windows temperature heating using temperature feedback from the temperature sensors. In case of window heating fault, the AICU sends an output to the Centralized Display System (CDS). The AICUs also transmit fault messages to the Central Maintenance System (CMS).
MAINTENANCE COURSE - T1 & T2 (RR / Metric) LEVEL I - ATA 30 Ice & Rain Protection
WINDSHIELD ANTI-ICING / DEFOGGING & RAIN PROT PRESENTATION
Mar 15, 2006 Page 26
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A380 TECHNICAL TRAINING MANUAL
ANTI-ICE AND DEFOGGING CONTROL AND MONITORING MAINTENANCE COURSE - T1 & T2 (RR / Metric) LEVEL I - ATA 30 Ice & Rain Protection
WINDSHIELD ANTI-ICING / DEFOGGING & RAIN PROT PRESENTATION
Mar 15, 2006 Page 27
A380 TECHNICAL TRAINING MANUAL
WINDSHIELD ANTI-ICING / DEFOGGING & RAIN PROT PRESENTATION Wiper System
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Each windshield has its own individually controlled wiper. A two-speed electrical motor controlled by the WIPER control selector located on the overhead panel, actuates each wiper. SLOW or FAST speed can be selected. When the selector is set to OFF, the wiper stops in the parking position on the lower part of the windshield and is lifted off the aircraft structure. A test of the electrical motors is triggered by the AICUs.
MAINTENANCE COURSE - T1 & T2 (RR / Metric) LEVEL I - ATA 30 Ice & Rain Protection
WINDSHIELD ANTI-ICING / DEFOGGING & RAIN PROT PRESENTATION
Mar 15, 2006 Page 28
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A380 TECHNICAL TRAINING MANUAL
WIPER SYSTEM MAINTENANCE COURSE - T1 & T2 (RR / Metric) LEVEL I - ATA 30 Ice & Rain Protection
WINDSHIELD ANTI-ICING / DEFOGGING & RAIN PROT PRESENTATION
Mar 15, 2006 Page 29
A380 TECHNICAL TRAINING MANUAL
WINDSHIELD ANTI-ICING / DEFOGGING & RAIN PROT PRESENTATION Rain Repellent System
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The rain repellent system is composed of a pressurized rain repellent can assembly for storage, a gage assembly for pressure indicating, time controlled solenoid valves, 2 spray nozzles and a blow out reservoir, which lets the spray nozzles be purged with hot air. Normally hot air from the trim air system purges the repellent lines and nozzles. When the rain repellent pushbutton is pressed in, the solenoid valve opens for a short time. This causes a measured quantity of rain repellent liquid to be sprayed onto the related windshield on ground, the rain repellent system is inhibited when engines are shut down.
MAINTENANCE COURSE - T1 & T2 (RR / Metric) LEVEL I - ATA 30 Ice & Rain Protection
WINDSHIELD ANTI-ICING / DEFOGGING & RAIN PROT PRESENTATION
Mar 15, 2006 Page 30
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A380 TECHNICAL TRAINING MANUAL
RAIN REPELLENT SYSTEM MAINTENANCE COURSE - T1 & T2 (RR / Metric) LEVEL I - ATA 30 Ice & Rain Protection
WINDSHIELD ANTI-ICING / DEFOGGING & RAIN PROT PRESENTATION
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A380 TECHNICAL TRAINING MANUAL
POTABLE & WASTE WATER ICE PROTECTION PRESENTATION General
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An automatic electrical water ice protection system is installed to prevent ice formation in the water pipes and drain masts in flight or on ground at freezing temperature. Two Ice Protection Control Units (IPCUs) control and monitor this system.
MAINTENANCE COURSE - T1 & T2 (RR / Metric) LEVEL I - ATA 30 Ice & Rain Protection
POTABLE & WASTE WATER ICE PROTECTION PRESENTATION
Mar 15, 2006 Page 32
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A380 TECHNICAL TRAINING MANUAL
GENERAL MAINTENANCE COURSE - T1 & T2 (RR / Metric) LEVEL I - ATA 30 Ice & Rain Protection
POTABLE & WASTE WATER ICE PROTECTION PRESENTATION
Mar 15, 2006 Page 33
A380 TECHNICAL TRAINING MANUAL
POTABLE & WASTE WATER ICE PROTECTION PRESENTATION Electrical Heating Elements - Control And Monitoring
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Electrical heating elements have temperature sensors that are installed on the following components: - water lines, - drain masts, - water service panels, - potable water tank lines and valves, - waste tank drain lines and valves. Electrical heating elements are controlled and monitored by two Ice Protection Control Units (IPCUs). The Ice Protection Control Units turn the electrical heating on or off depending on information from temperature sensors. Programmable temperature thresholds are stored in the IPCUs. IPCU intercommunicates via DEU-B (Decoder/Encoder Unit) with the CIDS directors to monitor and indicate the status of the Ice Protection System.
MAINTENANCE COURSE - T1 & T2 (RR / Metric) LEVEL I - ATA 30 Ice & Rain Protection
POTABLE & WASTE WATER ICE PROTECTION PRESENTATION
Mar 15, 2006 Page 34
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A380 TECHNICAL TRAINING MANUAL
ELECTRICAL HEATING ELEMENTS - CONTROL AND MONITORING MAINTENANCE COURSE - T1 & T2 (RR / Metric) LEVEL I - ATA 30 Ice & Rain Protection
POTABLE & WASTE WATER ICE PROTECTION PRESENTATION
Mar 15, 2006 Page 35
A380 TECHNICAL TRAINING MANUAL
ICE DETECTION SYSTEM PRESENTATION General
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The purpose of the ice detection system is to give to the crew indications of icing conditions. In addition the ice detection system automatically controls the Wing Anti Ice and Nacelle Anti Ice systems. The system is composed of two separate ice detectors installed symmetrically on the upper part of the nose part of the fuselage below the rear fixed windows. Two external visual ice indicators installed between the two windshields tell the crew that icing conditions are encountered, by formation of ice on visual indicators.
MAINTENANCE COURSE - T1 & T2 (RR / Metric) LEVEL I - ATA 30 Ice & Rain Protection
ICE DETECTION SYSTEM PRESENTATION
Mar 15, 2006 Page 36
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A380 TECHNICAL TRAINING MANUAL
GENERAL MAINTENANCE COURSE - T1 & T2 (RR / Metric) LEVEL I - ATA 30 Ice & Rain Protection
ICE DETECTION SYSTEM PRESENTATION
Mar 15, 2006 Page 37
A380 TECHNICAL TRAINING MANUAL
ICE DETECTION SYSTEM PRESENTATION Operation The ice detection system is made of two ice detectors installed on the skin of the aircraft. They are connected to the Anti-Ice Control Units (AICU). In AUTO mode, the AICUs operate automatically the WAI and Engine Air Intake anti ice systems depending on ice detectors information. The ice detection system operates in flight above 1500 Ft and when the Total Air Temperature (TAT) is below 10 degrees Celsius. The system is inhibited on ground.
Indication and Monitoring There are two levels of detection: ICE DETECTED related to an elementary detection and SEVERE ICE DETECTED related to 7 elementary detections. In auto mode, the ICE signal activates the Engine Air Intake Ice Protection and the SEVERITY signal activates the Wing Anti-Ice (WAI) through the AICU. This signal is reset (ice detector RESET input) and its processing is inhibited as long as the WAI is activated. These two levels are displayed on the EWD. A fault signal is displayed when the two ice detectors are faulty. L0Y06082 - L0DT0T0 - LM30P7000000001
Visual Light Indicator The ICE IND AND STBY COMPASS switch control the lighting of the lighted icing indicators.
MAINTENANCE COURSE - T1 & T2 (RR / Metric) LEVEL I - ATA 30 Ice & Rain Protection
ICE DETECTION SYSTEM PRESENTATION
Mar 15, 2006 Page 38
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A380 TECHNICAL TRAINING MANUAL
OPERATION ... VISUAL LIGHT INDICATOR MAINTENANCE COURSE - T1 & T2 (RR / Metric) LEVEL I - ATA 30 Ice & Rain Protection
ICE DETECTION SYSTEM PRESENTATION
Mar 15, 2006 Page 39
AIRBUS S.A.S. 31707 BLAGNAC cedex, FRANCE STM REFERENCE L0Y06082 MARCH 2006 PRINTED IN FRANCE AIRBUS S.A.S. 2006 ALL RIGHTS RESERVED AN EADS JOINT COMPANY WITH BAE SYSTEMS