R TASK 21-26-00-040-008- 01 R Deactivation of the Skin-Exchanger Isolation Valve (24HQ) R 1. Reason for the Job
__________________
R Refer to the MMEL TASK: 21-26-06 b) R Avionics Equipment Ventilation R Skin Exchanger Isolation Valve
R 2. Job Set-up Information
______________________
R A. Fixtures, Tools, Test and Support Equipment
R -------------------------------------------------------------------------------R REFERENCE QTY DESIGNATION R -------------------------------------------------------------------------------
R No specific circuit breaker(s) safety clip(s) R No specific 1 ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE R No specific AR CAP - BLANKING R No specific 1 WARNING NOTICE
R B. Referenced Information
R -------------------------------------------------------------------------------R REFERENCE DESIGNATION R -------------------------------------------------------------------------------
R 21-26-00-710-001 R 24-41-00-861-002 R R 24-41-00-862-002 R R 31-60-00-860-001 R 31-60-00-860-002 R 21-26-00-991-010 Operational Check of System via MCDU Energize the Aircraft Electrical Circuits from the External Power De-energize the Aircraft Electrical Circuits Supplied from the External Power EIS Start Procedure EIS Stop Procedure Fig. 403
R 3. Job Set-up__________
R Subtask 21-26-00-861-083
R A. Aircraft Maintenance Configuration
R (1) Energize the aircraft electrical circuits
R (Ref. TASK 24-41-00-861-002).
R (2) Do the EIS start procedure (Upper ECAM DU and lower ECAM DU only)
R (Ref. TASK 31-60-00-860-001).
R Subtask 21-26-00-865-094
R B. Open, safety and tag this(these) circuit breaker(s):
R -------------------------------------------------------------------------------
R PANEL DESIGNATION IDENT. LOCATION
R -------------------------------------------------------------------------------
R 49VU AIR COND/AVNCS VENT/CTL 6HQ D06
R Subtask 21-26-00-010-088
R C. Get Access
R (1) Put the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE in position at the
R access door 824.
R (2) Open the access door 824.
R 4. Procedure_________
R (Ref. Fig. 403/TASK 21-26-00-991-010)
R Subtask 21-26-00-040-064
R A. Opening Procedure of the Skin-Exchanger Isolation Valve
R (1) Disconnect the connector 24HQ-A from the valve 24HQ.
R (2) Put CAP - BLANKING on the disconnected electrical connectors.
R (3) Keep the electrical cable and its connector near the valve.
R (4) Fully open the valve 24HQ with the manual mechanism.
R (5) On the bottom part of the upper ECAM display unit:
R - the VENT AVNCS SYS FAULT warning comes into view.
R Ignore this warning.
R On the ECAM control panel:
R - push the CLR key.
R (6) Remove the safety clip(s) and the tag(s) and close this(these)
R circuit breaker(s):
R 6HQ.
R (7) Do an operational test of the avionics equipment ventilation from the
R MCDU (Ref. TASK 21-26-00-710-001).
R 5. Close-up________
R Subtask 21-26-00-410-085
R A. Close Access
R (1) Make sure that the work area is clean and clear of tool(s) and other
R items.
R (2) Close the access door 822.
R (3) Remove the access platform(s).
R Subtask 21-26-00-942-080
R B. Safety Precautions
R (1) Put a WARNING NOTICE in position in the cockpit to tell the crew that
R the skin-exchanger isolation valve is deactivated.
R (2) Make an entry in the log book.
R Subtask 21-26-00-862-085
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 21-26-00-440-008
1. Reason for the Job
R Reactivation of the Skin-Exchanger Isolation Valve (24HQ) __________________ Refer to the MMEL TASK: 21-26-06 Avionics Equipment Ventilation Skin Exchanger Isolation Valve
2. Job Set-up Information
______________________
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