R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 401-499,
Subtask 28-21-00-860-091
C. Aircraft Maintenance Configuration WARNING : MAKE SURE THAT ALL THE CIRCUITS IN MAINTENANCE ARE ISOLATED
_______ BEFORE YOU SUPPLY ELECTRICAL POWER TO THE AIRCRAFT.
(1)
Energize the aircraft electrical circuits (Ref. TASK 24-41-00-861-002).
(2)
Do the EIS start procedure (ECAM only) (Ref. TASK 31-60-00-860-001), then: - on the ECAM control panel (CP), push (in) the FUEL P/BSW and make
sure that the FUEL page is shown on the ECAM lower DU.
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(3) Refuel (Ref. TASK 12-11-28-650-003), defuel (Ref. TASK 28-25-00-650-
001) or transfer fuel (Ref. TASK 28-25-00-869-001) as necessary to
get these quantities:
- the center tank contains a minimum fuel quantity of 1000 kg
(2204.6220 lb)
- the left wing and the right wing tank inner-cells contain a minimum
of 1000 kg (2204.6220 lb) and maximum of 4300 kg (9479.8746 lb).
R **ON A/C 301-399,
R Subtask 28-21-00-860-091-A
R C. Aircraft Maintenance Configuration
R WARNING : MAKE SURE THAT ALL THE CIRCUITS IN MAINTENANCE ARE ISOLATED_______
R BEFORE YOU SUPPLY ELECTRICAL POWER TO THE AIRCRAFT.
R (1) Energize the aircraft electrical circuits (Ref. TASK 24-41-00-861-
R 002).
R (2) Do the EIS start procedure (ECAM only) (Ref. TASK 31-60-00-860-001),
R then:
R - on the ECAM control panel (CP), push (in) the FUEL P/BSW and make
R sure that the FUEL page is shown on the ECAM lower DU.
R (3) Refuel (Ref. TASK 12-11-28-650-003), defuel (Ref. TASK 28-25-00-650-
R 001) or transfer fuel (Ref. TASK 28-25-00-869-001) as necessary to
R get these quantities:
R - the left wing and the right wing tank inner-cells contain a minimum
R of 1000 kg (2204.6220 lb) and a maximum of 4300 kg (9479.8746 lb).
4. Procedure
_________ R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 401-499,
Subtask 28-21-00-710-073
A. Operational Test of the Wing-Tank Pump-Canister Check-Valves NOTE : This test is for the check valves 149QM, 150QM, 151QM and 152QM
____ installed in the left and right wing tank fuel pump canisters.
(1) Do the test that follows:
-------------------------------------------------------------------------------ACTION RESULT -------------------------------------------------------------------------------
1. On the panel 800VU:
-
make sure that the REFUEL VALVES switches are in the NORM and guarded position
-
make sure that the MODE SELECT switch is in the OFF and guarded position.
2. On the panel 40VU:
-make sure that the X FEED P/BSW is released (out).
3. On the panel 40VU:
-push (in) the CTR TK PUMPS 1 and 2 P/BSWs.
On the panel 40VU:
-
the XFEED P/BSW ON and OPEN lightsare off.
On the ECAM lower DU:
-
the XFEED valve indicator shows the valve closed (green cross-line).
On the panel 40VU:
-
the CTR TK PUMPS 1 and 2 P/BSW FAULTlights come on momentarily
-
the CTR TK PUMPS 1 and 2 P/BSW OFF lights go off.
On the ECAM lower DU:
-
the CTR TK pump indicator shows the pumps on (green in-line).
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-------------------------------------------------------------------------------
ACTION RESULT -------------------------------------------------------------------------------
4. On the panel 40VU:
-release (out) the CTR TK PUMPS 1 and 2 P/BSWs.
**ON A/C 301-399,
Subtask 28-21-00-710-073-A After 20 mins:
-the fuel quantities in the left (right) wing tank and the center tank stay the same
or
-if the fuel quantity in the left (right) wing tank increases by more than 50 kg (110.2311 lb) (with a decrease of fuel in the center tank), one or both of the check valve(s) in the left (right) wing tank fuel pump canister(s) is defective.
On the panel 40VU:
-the CTR TK PUMPS 1 and 2 P/BSW OFFlights come on.
A. Operational Test of the Wing Tank Pump-Canister Check-Valves
NOTE : This test is for the check valves 149QM, 150QM, 151QM and 152QM
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