MD-11 Flight Crew Operations Manual
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Ice and Rain Protection -
Alerts
Ice.40.2
ICE DETECTED (AIR) - Icing conditions exist with an airfoil or engine
anti-ice system not on. On airplanes with auto anti-ice system installed,
and auto or manual anti-ice selected, ice is detected and one of the ice
protection systems is not commanded on.
ICE DETECTOR FAIL (AIR) - Both channels of the dual ice detection
system, if installed are inoperative. Auto anti-ice, if installed, is
inoperative.
NO ICE DETECTED (AIR) - Ice detection system, if installed, indicates
icing conditions do not exist and one of the ice protection systems is
commanded on. May turn anti-ice systems off.
PITOT HEAT AUX (MISC) - Auxiliary pitot heater is inoperative.
PITOT HEAT CAPT/FO (MISC) - Respective pitot heat is inoperative.
PITOT HEAT OFF (MISC) - The PITOT HEAT switch on the upper
maintenance panel is in the OVRD OFF position.
TAT PROBE HEAT (MISC) - TAT probe heater is inoperative.
WSHLD DEFOG OFF (MISC) - WINDSHIELD DEFOG switch is in OFF.
WSHLD HEAT L/R FAIL (MISC) - Left/right windshield heater is
inoperative.
Cyan Alerts (Level 0)
A-ICE ALL ON - All engine and airfoil ANTI-ICE systems have been
commanded on.
AIRFOIL A-ICE ON - Wing and/or tail anti-ice has been commanded on.
ENG 1/2/3 A-ICE ON - Respective engine (1/2/3) ANTI-ICE switch is
commanded on.
ENGINE A-ICE ON - All 3 ENG ANTI-ICE switches are ON.
WSHLD HEAT HI - L and/or R windshield heat is on and in the HIGH mode.
WSHLD HEAT ON - L and/or R windshield heat is on and in the NORM
mode.
October 02, 2006
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