Anti-Ice System Flashcards
How many anti-ice systems does the 737 have?
2 – Bleed Air and Electrical
What equipment is electrically anti-iced on the 737?
- Pitot Tubes
- Temperature Probes
- Alpha Vane
- Engine Intake
- Anti-Ice Systems
- Windows, Windshield, Doors
- Water and Toilet Drain
What is Hot Bleed Air?
Hot air that is siphoned off each engine.
What equipment is pneumatically anti-iced on the 737?
- Engine Cowlings
- Inlet Guide Vanes
- Wing Thermal Anti-Icing System
Which engines provide hot bleed air to the wing anti-ice system on the 737?
Both Engines
Can the 737 be dispatched into known or forecasted icing conditions?
Yes, but only light or moderate. You can never dispatch into severe icing.
When do icing conditions exist according to Boeing?
When the temperature is 10C and below and there is visible moisture.
Why are the antennas anti-iced?
This prevents ice build up and the possibility of the antennas breaking off and flying into the engines or fuselage during flight.
Where is the wing anti-iced on the 737?
Around the leading edge (LEDs).
What is a major function of windshield heat?
Protection from Bird Strikes. The heat makes the windshield more malleable.
Does the 737 have de-icing capabilities?
No.
How can you de-ice an aircraft?
De-icing is done on the ground by spraying chemicals on the aircraft.
Fill in the blank: Depending on the specific chemicals used, airplanes must take off within a set amount of time called a _______.
[hold over time]
