Ice Protection Flashcards
The window heat control switches control heating to the:
Forward windshield only (FCOM 3.20.4, 3.10.3)
Probe heat supplies heat to:
- 4 pitot-static probes
- 2 angle of attack probes (engine operating)
- 2 TAT (FCOM 3.20.4)
WHAT WILL HAPPEN IF THE ENGINE 1 NACELLE ANTI-ICE SWITCH IS ON AND THE VALVE REMAINS CLOSED?
Anti ice valve remains closed.
EICAS Nacelle Anti ice Valve 1 MSG.
Valve light illuminates (FCOM 3.20.1)
WHEN DO THE TAT PROBES RECEIVE ANTI-ICING PROTECTION?
In flight (FCOM 3.20.4)
WHAT DOES THE EICAS ADVISORY MESSAGE HEAT P/S F/O MEAN?
Heater on the FO Pitot static side is not powered (FCOM 3.30.1)
WHAT HAPPENS WHEN THE FIRST OFFICER’S WINDSHIELD AIR SWITCH IS ON?
Anti-fogging air flow from the flight deck conditioned air supply to right windshield (FCOM 3.20.4)
If the EICAS msg HEAT R TAT is displayed on the ground, power is being applied to the right TAT probe. True or False
TRUE (FCOM 3.30.1)
TAT probe heat is failed,
or on the ground, TAT probe is heated
WHEN SHOULD WING ANTI-ICE BE USED ON THE GROUND?
Never (FCOM SP.16.7 The wing anti-ice system may be used as a de-icer or anti-icer in flight only.)
WHAT DOES THE EICAS ADVISORY MESSAGE HEAT L TAT MEAN?
L TAT probe heat is failed or on the ground TAT probe is heated. (FCOM 3.30.1)
WHICH IS TRUE WITH THE NACELLE ANTI-ICE SWITCHES ON?
All of these:
nacelle anti-icing valves open
Green EICAS nacelle anti ice msg
Approach idle (FCOM 3.20.1)
WHAT IS REQUIRED TO PREVENT WING DAMAGE AFTER LANDING, WITH THE WING ANTI-ICE SWITCH OFF, AND THE EICAS WAI VALVE RIGHT MESSAGE DISPLAYED?
Bleed duct on respective side needs to be isolated. ENGINE BLEEDs switch off (affected side), ISLN valve switch off (right) (QRH page 119)
HEAT FOR WHICH WINDOWS IS CONTROLLED BY THE WINDOW HEAT SWITCHES?
Front only (Right or Left - CAPT or F\O switches) (FCOM 3.20.4)
WHAT DOES THE EICAS MESSAGE HEAT FOLLOWED BY THE NAME OF THE PROBE MEAN?
Probe heat has failed, unpowered probe (FCOM 3.30.1)
WHEN IS THE EICAS ADVISORY MESSAGE WAI VALVE LEFT DISPLAYED?
valve is not in the commanded position. (FCOM 3.30.1)