4. Procedure
_________
Subtask 12-31-27-660-050
A. Check of the Flight Controls
(1)
Make sure that ice and/or snow is not forced into the areas between the flight control surfaces during the deicing procedures.
(2)
Remove any ice from :
-
the wing leading edge
-
the slats
-
the flaps
-
the spoilers
-
the ailerons
(3)
You must retract the wing flaps and slats during periods of snowfall and icing conditions. If it is necessary to operate these controls, make sure that they are clear of accumulation before retraction.
(4)
If an aircraft arrives with the slats and flaps in a positon other than fully retracted during a period of ice or snow conditons, those slats and flaps which are extended must be inspected for ice and snow accumulation before retracting.
(5)
All control surfaces must have no ice, snow or frost. After the deicing operation, do a check of the associated hinges, tracks, actuators and servo controls for trapped moisture that can freeze.
R Apply anti-icing fluid for protection ANTI-ICING AND DE-ICING R MATERIALS (Material No. 10-001) , ANTI-ICING AND DE-ICING MATERIALS R (Material No. 10-003) or ANTI-ICING AND DE-ICING MATERIALS (Material R No. 10-004) (Ref. TASK 12-31-11-660-001)
(6)
Do a check of the leading edge area of the spoilers, the flaps for ice, snow and frost.
(7)
Final checks after aircraft deicing on flap/slat areas : the applicable areas must have no snow and ice as well as water accumulation. During snowfall, freezing rain and drifting snow it is possible that snow and melting ice go into slots, drainage openings, hinges and operating linkage and freeze again. You must do the check of these areas with special attention when an aircraft has been parked outside for a long period above mentioned conditions.
Subtask 12-31-27-660-051
B. Lubrication of the Flaps and Slats
(1)
Do the applicable flap/slat lubrication tasks (Ref. TASK 12-22-27-640-004) (Ref. TASK 12-22-27-640-006)
(2)
The winter preparation program should include the flap and slat lubrication.
NOTE : In climates where the atmosphere is both particularly cold and
____ humid (mist/fog) use your experience to reduce the lubrication task intervals during winter operations.
NOTE : In extreme climates and low ambient temperatures it may be
____ difficult to lubricate the flap and slat systems correctly. If hangar space is not available then it is recommended to do the lubrication tasks at a station where the approppriate facilities are available or where the ambient temperature is above 0 deg.C (32.00 deg.F).
NOTE : Increases in grease stiffness may occur if water present
____ within a lubricant forms discrete lumps of ice, the associated increases in system friction may then result in torque limiter operation.
(3) When you do the lubrication tasks take care to ensure that all the old grease is removed in order to reduce the risk of an increase in grease stiffness.
COLD WEATHER MAINTENANCE - FUEL - MAINTENANCE PRACTICES
_______________________________________________________
TASK 12-31-28-660-001
Cold Weather Maintenance - Fuel
WARNING : OBEY THE FUEL SAFETY PROCEDURES.
_______
WARNING : MAKE SURE THE AREA AROUND THE AIRCRAFT IS SAFE BEFORE YOU START THE
_______ REFUEL/DEFUEL PROCEDURE. IN THE SAFETY AREA, DO NOT: 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：A320飞机维护手册 AMM SERVICING 2(55)
