(3)
 On the lower ECAM display unit, on the CAB PRESS page:

 -make sure that there is no XX on the INLET indication.
R 1EFF : 001-049, 051-058, 101-101, 1 21-26-00Page 444 1 1 Aug 01/05 1 1 1CES 1 (4) On the bottom part of the upper ECAM display unit:

 -the VENT AVNCS SYS FAULT warning comes into view.
 Disregard this warning.
 On the ECAM control panel:

 -push the CLR key.

R **ON A/C 059-099, 102-149, 151-199, 201-299, 301-399, 401-499,
 Subtask 21-26-00-040-050-A
 A. AEVC check of Vent SYS and Skin Air Inlet Valve Closure
 (Ref. Fig. 405A/TASK 21-26-00-991-005-A)

 (1) Do this test :
 -------------------------------------------------------------------------------ACTION RESULT -------------------------------------------------------------------------------
1. On the VENTILATION part of the overhead control and indicating panel 22VU :
 -release the BLOWER and EXTRACT pushbutton switches.
On the VENTILATION part of the overheadcontrol and indicating panel 22VU :
 -the OVRD legend of the BLOWER and EXTRACT pushbutton switches come on.
 On the lower display unit of the ECAM system, on the CABIN PRESS page :
 -the extract valve is partially open.
 NOTE : If the ventilation system is
____ defective or when the BLOWER and EXTRACT pushbutton switches are released (OVRD legends on):
 -there are no more colored backgrounds on the EFIS displays.
 In the aft avionics compartment :
 -check that the conditionned air inlet valve 21HQ is open.

 -------------------------------------------------------------------------------ACTION RESULT
 --------------------------------------------------------------------------------make sure that the extract fan operates correctly.
 (2)
 On the skin air inlet valve 15HQ :

 (a)
 Push the PUSH latch to release the handle.

 (b)
 Push the handle to engage the switch.

 (c)
 Set the deactivation switch to OFF position.

 (d)
 Stow and latch the handle.

 (e)
 Make sure that the skin air inlet valve is fully closed.

 (3)
 On the lower ECAM display unit, on the CAB PRESS page:

 -make sure that there is no XX on the INLET indication.

 (4)
 On the bottom part of the upper ECAM display unit:

 -the VENT AVNCS SYS FAULT warning comes into view.
 Disregard this warning.
 On the ECAM control panel:

 -push the CLR key. **ON A/C ALL
 5. Close-up
________ Subtask 21-26-00-410-062
 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 824 (Ref. TASK 52-41-00-410-002).

 (3)
 Remove the access platform(s).

 1EFF : ALL 1 21-26-00Page 446 1 1 Aug 01/05R 1 1 1CES 1

 Subtask 21-26-00-942-078
 B. Safety Precautions
 (1) Put a warning notice in the cockpit to tell the crew that the AEVC is deactivated.
 (2) Make an entry in the log book. Subtask 21-26-00-862-079
 C. Aircraft Maintenance Configuration
 (1)
 Do the EIS stop procedure
 (Ref. TASK 31-60-00-860-002).

 (2)
 De-energize the aircraft electrical circuits
 (Ref. TASK 24-41-00-862-002).

 1EFF : ALL 1 21-26-00Page 447 1 1 Aug 01/05R 1 1 1CES 1

 TASK 21-26-00-440-005
 Reactivation of the Avionics Equipment Ventilation Computer (AEVC)

 1. Reason for the Job
__________________
 Refer to the MMEL TASK: 21-26-10
 Avionics Equipment Ventilation
 Avionic Equipment Ventilation Computer

 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)
 **ON A/C 001-049, 051-058, 101-101,
 21-26-00-991-005 Fig. 405 R **ON A/C 059-099, 102-149, 151-199, 201-299, 301-399, 401-499,
 21-26-00-991-005-A Fig. 405A
 **ON A/C ALL
 3. Job Set-up
__________
 Subtask 21-26-00-869-113
　
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