Aircraft Deice/Anti-Ice Procedures Flashcards
CA: When is a cold weather preflight inspection required? (SOPM 04-01.56)
The OAT is ≤5°C, or Atmospheric Conditions conducive to icing exist or, The aircraft has
remained overnight and may have been subject to contamination or, A through flight and residual ice from
the inbound leg may have accumulated or, The wing fuel temp. is ≤0°C.
CA: What is the acceptable cold weather contaminant type and depth that is allowed to be on
the bottom surface of the wing tank area? (SOPM 04-01.56)
Frost, ≤1/8”
CA: When an aircraft has been cold soaked, how long must the engines be monitored, and
what must be verified prior to departure? (SOPM 04-03.16)
-60 Seconds, and fan rotation verified before engine start is initiated. Engines remain at
idle until oil pressure reaches normal operating range.
-After being cold soaked, the thrust reversers must be
actuated until the deploy and stow cycles are less that five seconds (CRJ 200) or two seconds (700/900),
prior to departure.
CA: How is a Pre-takeoff contamination check completed? (GDPM 04.18)
THE PIC: PIC sets the parking brake and ensures the aircraft remains static during
inspection, Turns the landing and taxi lights off, and turns the wing inspection lights on. Makes cabin announcement. THE CREW MEMBER CONDUCTING THE CHECK (PIC/SIC): Calls the flight attendant and asks
to have the ceiling lights switched to dim and all other cabin lights turned off during low light conditions,
Enters the cabin using the Pilot out-of-flight deck protocol, Proceeds to the most advantageous row from
which to view the wind upper surfaces. Asks the passengers seated in the adjacent rows to stand in the aisle
while the inspection is performed, Conducts a close visual inspection of both wing upper surfaces, including
associated flight control surfaces and winglets (During hours of darkness using a flashlight, the crewmember
must shine the flashlight through the adjacent window behind the adjacent row to illuminate the upper wing.
When the ceiling lights restrict visibility of the wing, asks the flight attendant to turn them off) Determines if
the wind upper surfaces are free of frozen contamination, Asks the passengers to be re-seated and fasten
seatbelts, Using Pilot out-of-flight deck protocol, regains entry to the flight deck, reports findings to PIC.
CA: What are the critical surfaces of the aircraft? (GDPM 02.4)
Wing Leading edge, wing forward and rear upper surfaces (including winglets), and
associated flight controls. Horizontal Stabilizer leading edge, forward and rear upper surfaces, and associated
flight controls. Vertical stabilizer and associated flight controls. Engine inlets. Critical Surfaces that must be
free of contaminants are: Air data probes/sensors, AOA vanes, Antennas, Fuel drains and NACA vent scoops,
APU intake/exhaust, Landing gear, Flight deck windshields and windows.
CA: When does the HOT begin? (GDPM 02.9)
HOT begins when the final application of the deicing/anti-icing fluid commences and
expires when the deicing/anti-icing fluid loses its effectiveness.
CA: If the visibility was ¼ SM due to freezing drizzle, what intensity of FZDZ would that be?
(De-ice flip cards Pg. 4)
Heavy
CA: When is an anti-icing fluid considered to have failed? (GDPM 2.7)
Occurs when frozen contamination eventually accumulates on the suface of the fluid and
is no longer being absorbed by the fluid. The appearance of a build up becomes evident and the fluid becomes
opaque.
CA: Is a takeoff authorized if moderate freezing drizzle is actually occurring? (De-ice flip
cards Pg. 2)
Yes
