R Subtask 21-26-00-862-087
R C. Aircraft Maintenance Configuration
R (1) Do the EIS stop procedure
R (Ref. TASK 31-60-00-860-002).
R (2) De-energize the aircraft electrical circuits
R (Ref. TASK 24-41-00-862-002).
TASK 21-26-00-440-007 Reactivation of the Extract Fan
1. Reason for the Job
__________________
Refer to the MMEL TASK: 21-26-02 b)
Avionics Equipment Ventilation
Extract Fan
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
24-41-00-861-002 Energize the Aircraft Electrical Circuits from the External Power 24-41-00-862-002 De-energize the Aircraft Electrical Circuits Supplied from the External Power TSM 21 PB 101 (for corrective action)
3. Job Set-up
__________ Subtask 21-26-00-869-109
A. Aircraft Maintenance Configuration
(1) Energize the aircraft electrical circuits
(Ref. TASK 24-41-00-861-002).
4. Procedure
_________ Subtask 21-26-00-440-056
A. On the VENTILATION section of the overhead control and indicating panel 22VU:
-Push the EXTRACT pushbutton switch (the OVRD legend goes off). Subtask 21-26-00-810-056
B. Do the trouble-shooting of the system (Ref. TSM 21 PB 101). Make the applicable corrections.
1EFF : ALL 1 21-26-00Page 468 1 1 Aug 01/05R 1 1 1CES 1
5. Close-up
________ Subtask 21-26-00-941-095
A. Aircraft Maintenance Configuration
(1) Remove the warning notice(s). Subtask 21-26-00-862-074
B. De-energize the aircraft electrical circuits (Ref. TASK 24-41-00-862-002).
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TASK 21-26-00-040-008
R Skin-Exchanger Isolation Valve (24HQ) Inoperative - Check of the Open Position R of the Valve
1. Reason for the Job
__________________
R Refer to the MMEL TASK: 21-26-06 a) R Avionics Equipment Ventilation R Skin Exchanger Isolation Valve
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
R No specific 1 ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE R No specific 1 WARNING NOTICE
B. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
21-26-00-710-001 24-41-00-861-002
24-41-00-862-002
R 21-26-00-991-010
3. Job Set-up
__________Operational Check of System via MCDUEnergize the Aircraft Electrical Circuits from the External PowerDe-energize the Aircraft Electrical Circuits Supplied from the External Power
Fig. 403
Subtask 21-26-00-861-065
A. Aircraft Maintenance Configuration
(1) Energize the aircraft electrical circuits R (Ref. TASK 24-41-00-861-002). R
Subtask 21-26-00-010-069
R B. Get Access
R (1) Put the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE in position at the access door 822.
(2) Open the access door 822.
4. Procedure_________
R (Ref. Fig. 403/TASK 21-26-00-991-010)
Subtask 21-26-00-040-060
R A. Check of the Open Position of the Valve
R R R R (1) In the avionics compartment: - Make sure that the skin-exchanger isolation valve 24HQ is open (the position indicator of the valve is at 0).
R R (2) Do an operational test of the avionics equipment ventilation from the MCDU (Ref. TASK 21-26-00-710-001).
5. Close-up________
Subtask 21-26-00-410-070
A. Close Access
(1) Make sure that the work area is clean and clear of tool(s) and other items.
(2) Close the access door 822.
(3) Remove the access platform(s).
Subtask 21-26-00-942-075
B. Safety Precautions
R R (1) Put a WARNING NOTICE in position in the cockpit to tell the crew that the skin-exchanger isolation valve is deactivated.
(2) Make an entry in the log book.
Subtask 21-26-00-862-065 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 AIR CONDITIONING 空调 2(20)
