(2)
Put the safety barriers in position.
Subtask 28-11-00-650-114
B. Fuel Configuration
(1)
Defuel the applicable fuel tank (Ref. TASK 28-25-00-650-001).
(2)
Drain the remaining fuel from the applicable fuel tank (Ref. TASK 28-25-00-650-003).
1EFF : ALL 1 28-11-00Page 702 1 1 May 01/04 1 1 1CES 1R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 401-499,
Subtask 28-11-00-010-074
C. Get Access
(1)
Put the adjustable access platform below the applicable wing.
(2)
Remove the applicable fuel-tank access panels (Ref. TASK 28-10-00-910-002), (Ref. TASK 57-17-11-000-001), (Ref. TASK 57-27-11-000-001), (Ref. TASK 57-27-11-000-002), (Ref. TASK 28-12-45-000-001), (Ref. TASK 28-12-46-000-001) and (Ref. TASK 28-12-47-000-001):
-
for the center tank 147AZ, 148AZ
-
for the left wing remove, 540AB, 540BB, 540CB, 540DB, 540EB, 540FB, 540GB, 540HB 540JB, 540KB, 540LB, 540MB, 540NB, 540PB, 540QB, 540RB, 550AB, 550BB, 550CB, 550DB
-
for the right wing remove, 640AB, 640BB, 640CB, 640DB, 640EB, 640FB, 640GB, 640HB 640JB, 640KB, 640LB, 640MB, 640NB, 640PB, 640QB, 640RB, 650AB, 650BB, 650CB, 650DB.
**ON A/C 301-399,
Subtask 28-11-00-010-074-A
C. Get Access
(1)
Put the adjustable access platform below the applicable wing.
(2)
Remove the applicable fuel-tank access panels (Ref. TASK 28-10-00-910-002), (Ref. TASK 57-17-11-000-001), (Ref. TASK 57-27-11-000-001), (Ref. TASK 57-27-11-000-002), (Ref. TASK 28-12-45-000-001), (Ref. TASK 28-12-46-000-001) and (Ref. TASK 28-12-47-000-001):
-
for the center tank: 148AZ
-
for the left wing: 540AB, 540BB, 540CB, 540DB, 540EB, 540FB, 540GB, 540HB 540JB, 540KB, 540LB, 540MB, 540NB, 540PB, 540QB, 540RB, 550AB, 550BB, 550CB, 550DB
-
for the right wing: 640AB, 640BB, 640CB, 640DB, 640EB, 640FB, 640GB, 640HB 640JB, 640KB, 640LB, 640MB, 640NB, 640PB, 640QB, 640RB, 650AB, 650BB, 650CB, 650DB.
1EFF : ALL 1 28-11-00Page 703 1 1 Aug 01/05 1 1 1CES 1 **ON A/C ALL
4. Procedure
_________
Subtask 28-11-00-160-053
A. Cleaning of the Fuel Tanks
(1)
Examine the fuel tanks for contamination and debris. Look specially in the areas that follow:
-the lowest point of each tank
-below each fuel quantity probe
-the outboard side of each wing rib
- outboard of each clack valve
- on the strainer mesh of each fuel pump.
(2)
If necessary, use the most suitable method to remove the contamination and debris.
5. Close-up
________
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 401-499,
Subtask 28-11-00-410-073
A. Close Access
(1)
Make sure that the work area is clean and clear of tool(s) and other items.
(2)
Install the applicable fuel-tank access panels (Ref. TASK 57-27-11-400-001), (Ref. TASK 57-17-11-400-001), (Ref. TASK 57-27-11-400-002), (Ref. TASK 28-12-45-400-002), (Ref. TASK 28-12-46-400-001) and (Ref. TASK 28-12-47-400-001):
-
for the center tank install, 147AZ, 148AZ
-
for the left wing install, 540AB, 540BB, 540CB, 540DB, 540EB, 540FB, 540GB, 540HB 540JB, 540KB, 540LB, 540MB, 540NB, 540PB, 540QB, 540RB, 550AB, 550BB, 550CB, 550DB
-
for the right wing install, 640AB, 640BB, 640CB, 640DB, 640EB, 640FB, 640GB, 640HB 640JB, 640KB, 640LB, 640MB, 640NB, 640PB, 640QB, 640RB, 650AB, 650BB, 650CB, 650DB.
1EFF : ALL 1 28-11-00Page 704 1 1 Aug 01/05 1 1 1CES 1 1EFF : ALL 1 28-11-00Page 705 1 1 May 01/04 1 1 1CES 1 VALVE - WATER DRAIN (21QM,22QM,23QM,24QM,25QM,26QM,94QM,95QM)
R **ON A/C 301-399,
R Subtask 28-11-00-410-073-A
R A. Close Access
R R (1) Make sure that the work area is clean and clear of tool(s) and other items.
R R R R R R R R R R R (2) Install the applicable fuel-tank access panels (Ref. TASK 57-27-11-400-001), (Ref. TASK 57-17-11-400-001), (Ref. TASK 57-27-11-400-002), (Ref. TASK 28-12-45-400-002), (Ref. TASK 28-12-46-400-001) and (Ref. TASK 28-12-47-400-001): - for the center tank install, 147AZ, 148AZ - for the left wing install, 540AB, 540BB, 540CB, 540DB, 540EB, 540FB, 540GB, 540HB 540JB, 540KB, 540LB, 540MB, 540NB, 540PB, 540QB, 540RB, 550AB, 550BB, 550CB, 550DB - for the right wing install, 640AB, 640BB, 640CB, 640DB, 640EB, 640FB, 640GB, 640HB 640JB, 640KB, 640LB, 640MB, 640NB, 640PB, 640QB, 640RB, 650AB, 650BB, 650CB, 650DB.
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