(2)
Put the safety barriers in position.
1EFF : ALL 1 28-21-00Page 548 1 1 Aug 01/05 1 1 1CES 1 Subtask 28-21-00-010-051
B. Get Access
(1)
Put the access platform below the applicable access panels.
(2)
Remove the applicable access panels:
-
for the left wing, remove 522AB, 413AL, 413CL, 413EL, 414AZ, 414FR, 437AL, 471AL, 472AR
-
for the right wing, remove 622AB, 423AL, 423AZ, 423CL, 423FL, 424ER, 447AL, 481AL, 482AR.
Subtask 28-21-00-860-079
C. Aircraft Maintenance Configuration WARNING : MAKE SURE THAT ALL THE CIRCUITS IN MAINTENANCE ARE ISOLATED
_______ BEFORE YOU SUPPLY ELECTRICAL POWER TO THE AIRCRAFT.
(1)
On the panel 115VU, make sure that the ENG/MASTER 1 and the ENG/MASTER 2 switches are in the OFF position.
(2)
Energize the aircraft electrical circuits (Ref. TASK 24-41-00-861-002).
(3)
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 pushbutton switch (P/BSW)
-make sure that the engine LP valves are shown closed (amber cross-line) on the ECAM lower display unit (DU).
(4)
Make sure each wing fuel tank contains a minimum of 1000 kg (2204.6220 lb) of fuel. Refuel if necessary (Ref. TASK 12-11-28-650-003).
(5)
On the panel 115VU, put the ENG/MASTER 1 and the ENG/MASTER 2 switches in the ON position.
(6)
On the ECAM lower DU:
-make sure that the engine LP valves are open (green in-line).
1EFF : ALL 1 28-21-00Page 549 1 1 May 01/04R 1 1 1CES 1
Subtask 28-21-00-865-058
D. Open, safety and tag this(these) circuit breaker(s):
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------49VU FUEL/LP VALVE/MOT1/ENG2 2QG A09 49VU FUEL/LP VALVE/MOT1/ENG1 1QG A08 121VU FUEL/LP VALVE/MOT2/ENG2 4QG M26 121VU FUEL/LP VALVE/MOT2/ENG1 3QG M25
Subtask 28-21-00-860-080
E. Aircraft Maintenance Configuration (continued) R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 401-499,
(Ref. Fig. 501/TASK 28-21-00-991-001)
**ON A/C 301-399,
(Ref. Fig. 501A/TASK 28-21-00-991-001-A)
**ON A/C ALL
(Ref. Fig. 502/TASK 28-21-00-991-002)
(1)
On the panel 115VU:
-put the ENG/MASTER 1 and ENG/MASTER 2 switches in the OFF position.
(2)
On the panel 40VU:
-push (in) the L TK PUMPS 1 and 2 and the R TK PUMPS 1 and 2 P/BSW
-make sure that the OFF lights go off. NOTE : The FAULT lights come on momentarily.
____
1EFF : ALL 1 28-21-00Page 550 1 1 Aug 01/05 1 1 1CES 1
Panel Location
Figure 501/TASK 28-21-00-991-001
R 1EFF : 001-049, 051-099, 101-149, 151-199, 1 28-21-00Page 551 1201-299, 401-499, 1Aug 01/05 1 1 1CES 1
R Panel Location
R Figure 501A/TASK 28-21-00-991-001-A
R 1EFF : 301-399, 1 28-21-00 Page 552
1 1 May 01/04
1 1
1CES 1
Fuel Pump System Figure 502/TASK 28-21-00-991-002
1EFF : 1 1R 1CES ALL 1 11 1 28-21-00 Page 553 May 01/04
4. Procedure
_________
Subtask 28-21-00-790-053
A. Leak Test
(1) Examine the main fuel-feed pipeline from the LP valve to the HP valve for leaks.
5. Close-up
________ R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 401-499,
(Ref. Fig. 501/TASK 28-21-00-991-001)
**ON A/C 301-399,
(Ref. Fig. 501A/TASK 28-21-00-991-001-A)
**ON A/C ALL
Subtask 28-21-00-860-078
A. Aircraft Maintenance Configuration
(1) On the panel 40VU:
-release (out) the L TK PUMPS 1 and 2 and R TK PUMPS 1 and 2 P/BSW
-make sure the OFF lights come on.
Subtask 28-21-00-865-057
B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 1QG, 2QG, 3QG, 4QG.
Subtask 28-21-00-860-083
C. Aircraft Maintenance Configuration
(1)
On the ECAM DU make sure that the LP valves are closed.
(2)
Do the EIS stop procedure (Ref. TASK 31-60-00-860-002).
1EFF : ALL 1 28-21-00Page 554 1 1 Aug 01/05 1 1 1CES 1
(3) De-energize the aircraft electrical circuits (Ref. TASK 24-41-00-862-002).
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