Subtask 21-26-51-862-051
C. De-energize the ground service network (Ref. TASK 24-42-00-862-001).
FANS - BLOWER AND EXTRACT (18HQ,20HQ) - ADJUSTMENT/TEST
_______________________________________________________
TASK 21-26-51-710-001
Operational Test of the Blower and Extract Fans (18HQ, 20HQ) (without the CFDS)
1. Reason for the Job
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To do the test after the removal/installation of the blower fan or the
extract fan if the CFDS is unserviceable.
2. Job Set-up Information
______________________
A. Referenced Information
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REFERENCE DESIGNATION
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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
31-60-00-860-001 EIS Start Procedure
31-60-00-860-002 EIS Stop Procedure
3. Job Set-up
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Subtask 21-26-51-865-053
A. Make sure that this(these) circuit breaker(s) is(are) closed:
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------49VU AIR COND/AVNCS VENT/CTL 6HQ D06 49VU AIR COND/AVNCS VENT/CTL 5HQ D05 122VU AIR COND/AVNCS/VENT/MONG 3HQ Y17
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 401-499,
123VU AVNCS VENT/EXTC/FAN 2HQ AE02
R -------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------**ON A/C ALL
R 123VU AVNCS VENT/BLOWER/FAN 1HQ AD10
R **ON A/C 301-399,
R 123VU AVNCS VENT/EXTC/FAN 2HQ AC04
R **ON A/C ALL
Subtask 21-26-51-869-052
B. Make sure that the throttle control levers of the engines 1 and 2 are at idle.
Subtask 21-26-51-861-052
C. Energize the aircraft electrical circuits (Ref. TASK 24-41-00-861-002).
Subtask 21-26-51-860-051
D. Aircraft Maintenance Configuration
(1) On the VENTILATION section of the panel 22VU: - make sure that the BLOWER and EXTRACT pushbutton switches are in the AUTO configuration (pushed with the FAULT and OVRD legends off).
(2) Do the EIS start procedure (Upper ECAM DU and lower ECAM DU only) (Ref. TASK 31-60-00-860-001).
4. Procedure
_________ Subtask 21-26-51-710-050
A. Operational Test of the Blower and Extract Fans (18HQ, 20HQ)
-------------------------------------------------------------------------------ACTION RESULT -------------------------------------------------------------------------------
1. On the circuit breaker panel 122VU: On the VENTILATION section of the panel22VU:
- open the circuit breaker 3HQ. - the FAULT legends of the BLOWER and EXTRACT pushbutton switches come on. On the upper ECAM DU: - the AVNCS SYS FAULT indication comes
into view after approximately 10 seconds.
2. On the circuit breaker panel 122VU: On the VENTILATION section of the panel22VU:
- close the circuit breaker 3HQ. - the FAULT legends of the BLOWER and EXTRACT pushbutton switches go off after 10 seconds.
On the upper ECAM DU: - the AVNCS SYS FAULT indication goes out of view.
5. Close-up________
Subtask 21-26-51-860-052
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