Oral Bank - ANTI-ICE / WINDOW HEAT Flashcards
Describe what happens when NAI is commanded on? (3)
- NAI valves open
- Selected engine igniters operate continuously
- Engine PRV opens when the NAI valve is open
The 747-8 EICAS msg BLD LOW TEMP indicates what?
Engine bleed air to low for sufficient wing anti-icing
Does the Nacelle Anti-Ice AUTO position function on the ground?
No, auto only works inflight
How many ice detection probes are there, and where are they located?
2 probes located on the forward fuselage
How many angle of attack probes are provided, and when are they heated?
2 probes electrically heated when ANY engine is operating
How many pitot-static probes are provided, and when are they heated?
4 probes, electrically heated when ANY engine is operating
Window Heat ON switches provide both anti-ice and anti-fogging protections to which flight deck windows?
Forward left and right windshields only
On the -400, what indications are displayed, on primary EICAS, when the Nacelle anti-ice and/or the wing anti-ice valve is open?
- NAI for nacelle anti-ice
- WAI for wing anti-ice
On the -8, what indications are displayed, on primary EICAS, when the nacelle anti-ice and/or the wing anti-ice valve is open?
- EAI for engine nacelle anti-ice
- WAI for wing anti-ice
Is wing anti-ice effective with the leading edge flaps extended?
No
Can you operate the wing anti-ice system on the ground?
No, prohibited