Ice And Rain Protection Flashcards
Is it possible to use APU bleed air for wing anti ice?
No
By what means are the slats anti iced?
Hot bleed air from pneumatic system
What happens to the wing anti ice valve in case of a hot air leak?
Automatically closes
What happens of the wing anti ice button is pushed on?
30 seconds self test
Which slats are anti iced?
Three outboard slats
What is the function of the anti ice system?
Protect critical areas by hot air and electrical heating
Which parts are anti iced/ de iced by hot air?
The three outboard slats and engine intakes.
Which parts are anti iced/ de iced by electrical heating?
- flight deck Windows
- sensors, pitot probes, static ports
- water waste drain mast
What happens with the wing anti ice valves when electrical supply fails?
They automatically close
What happens to the thrust when wing anti ice is selected on?
N1 limit is reduced and N1 increased
What happens with the engine anti ice valve when air is unavailable?
Closes automatically
What happens to the engine anti ice valves when electrical supply fails?
Engine anti ice valves open.
What happens to the thrust when engine anti ice is selected on?
N1 limit reduced, N1 increased (if necessary)
When is window heating automatically on?
- at least one engine running
- aircraft in flight
Which aircraft parts are electrically heated?
- pitot heads
- static ports
- angle of attack probes
- total air temperature probes
