R 1EFF : ALL 1 12-31-49Page 203 1 1 Nov 01/04 1 1 1CES 1
R (a) If the ECB was on the aircraft during the cold soak, make sure
R that the temperature of the ECB is higher than -40 deg.C (-40.00
R deg.F).
R If the temperature of the ECB is lower than -40 deg.C (-40.00
R deg.F), use a pre-conditioning procedure to increase the
R temperature of the ECB to a minimum of -40 deg.C (-40.00 deg.F)
R (Ref. TASK 12-33-21-618-001) or (Ref. TASK 12-33-21-618-001).
R (b) If the ECB was removed from the aircraft and kept at a
R temperature of between 15 deg.C (59.00 deg.F) and 35 deg.C (95.00
R deg.F), install the ECB
R - If a GTCP 36-300 APU is installed
R (Ref. TASK 49-61-34-400-001)
R - If an APS 3200 APU is installed
R (Ref. TASK 49-61-34-400-002)
R - If a 131-9(A) APU is installed
R (Ref. TASK 49-61-34-400-003)
R (2) Electrical Power.
R (a) For the cold weather maintenance - electrical power (Ref. TASK
R 12-31-24-660-001).
R (3) Start and operate the APU
R - If a GTCP 36-300 APU is installed
R (Ref. TASK 49-00-00-860-003)
R - If an APS 3200 APU is installed
R (Ref. TASK 49-00-00-860-005)
R - If a 131-9(A) APU is installed
R (Ref. TASK 49-00-00-860-008)
R
Subtask 12-31-49-660-053
D. Turn-Around Time
For turn-around in cold weather conditions, when it is not pratical to
remove equipment, it is recommended to keep the APU in operation. In this
configuration :
- the temperature in the cabin will not decrease,
- no specific cold weather maintenance practices are necessary for the
APU system.
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COLD WEATHER MAINTENANCE - STRUCTURE - MAINTENANCE PRACTICES
____________________________________________________________
TASK 12-31-51-660-001 Cold Weather Maintenance - Structure
1. Reason for the Job
__________________
This procedure gives the cold weather maintenance practices for the
structure.
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
53-00-00-210-001 Remove and Inspect Piston-Type Drain Valves in Lower Fuselage Shell 53-42-14-000-001 Removal of the AFT Cargo-Compartment Floor-Panels Zone 150 53-42-14-400-001 Installation of the AFT Cargo-Compartment Floor-Panels Zone 150
3. Job Set-up
__________ Subtask 12-31-51-010-050
A. There is no special job set-up for this task.
4. Procedure
_________ Subtask 12-31-51-660-050
A. General
(1)
At the start of each winter, make sure that the drain valves in the lower fuselage are clean and operate correctly. (Ref. TASK 53-00-00-210-001)
(2)
Ice can collect in the lower fuselage areas especially when the aircraft flies from warm, humid climates to cold climates. In some conditions, the ice can collect during more than one flight.
NOTE : Water/ice in the lower fuselage can cause failure of the radio
____
altimeter.
(3) When you do a check for ice in the lower fuselage, look for ice in the aft area before you look in the forward area. Ice usually collects more easily in the aft area than in the forward area. Water evaporation is faster in the forward area because of the warnm air from the avionics compartment. 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(62)
