Anti-Ice/Rain Flashcards

1
Q

Recall conditions which require the use of engine anti-ice

A

OAT is 6ºC or below (10ºC or below in flight) and any of the following conditions exist:

  • Visible moisture (clouds, rain, snow, sleet, ice crystals, fog when visibility is 1 mile or less, etc) is present, or
  • 3ºC or less temperature/dew point spread, or
  • Ice, snow, slush or standing water is present on the ramps, taxiways or runways
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2
Q

Recall engine run-up requirements during icing conditions

A

Run the engines to a minimum of 40% N1 for approximately 10 seconds at intervals no greater than 60 minutes.
Additionally, a standing takeoff is required during icing conditions and is accomplished by holding the brakes while in position on the assigned runway until the engines are stabilized at, or above, 50% N1 before the start of the takeoff roll.

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3
Q

Recall function of the AIR DATA Heat pushbutton

A

OFF (amber light) – all air data system heaters are off
Dark when all heater circuits for pitots, rudder limiter, stall probes, static ports, and RAT probes are energized
NOTE: RAT probe heat is inhibited during ground operations

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4
Q

Recall function of the WING ICE DET switch

A

RESET – resets system and removes WING ICE DETECTED alert from the EAD. System will not reset if ice remains on the sensors
TEST – tests the wing ice detection system
NOTE: Wing ice detection system functions on the ground only and alerts the pilots to the presence of wing upper surface ice. It is inhibited during takeoff, landing and in-flight
Lim: Do not takeoff with WING ICE DETECTED alert displayed

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5
Q

Recall which cockpit windows are electrically heated and/or anti-fogged

A

The three pilot windshields are electrically anti-iced and electrically anti-fogged

The clearview windows are also anti-fogged

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6
Q

Recall which control surfaces are anti-iced with engine bleed air

A

Wing slats and horizontal stab leading edge—from either or both engines

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7
Q

Recall which engine components are anti-iced

A

Engine anti-ice systems are independent of the airfoil anti-ice systems and provide ground and in-flight anti-ice heat to their respective engine nose cowl

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8
Q

Recall function of the WINDSHIELD ANTI-FOG switch

A

OFF – Turns off windshield and clearview anti-fog

ON – Turns on windshield and clearview anti-fog

Available for flight or ground use

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9
Q

Recall function of the WINDSHIELD ANTI-ICE switch

A

OFF – Turns off windshield anti-ice

ON – Turns on windshield anti-ice

Available for flight or ground use

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