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28-10-00-910-001 Safety Procedures When You Do Work in a Fuel Tank 28-10-00-910-002 Access to the Fuel Tanks and the Work Areas 28-12-46-000-001 Removal of the Overpressure-Protector Outlet 28-25-00-650-001 Pressure Defuel 28-25-00-650-003 To Drain Remaining Fuel from the Wing Tanks and the
Center Tank
**ON A/C 001-001, 051-052,
28-25-46-991-001 Fig. 401
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 401-499, Post SB 28-1077 For A/C 001-001,051-052, 28-25-46-991-001-A Fig. 401A
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 401-499,
3. Job Set-up
__________
Subtask 28-25-46-941-052
A. Safety Precautions WARNING : OBEY THE SAFETY PROCEDURES WHEN YOU DO WORK IN A FUEL TANK.
_______
(1)
You must obey the fuel safety procedures (Ref. TASK 28-10-00-910-001) when you do work in a fuel tank.
(2)
Put the safety barriers in position.
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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).
Subtask 28-25-46-010-050
C. Get Access
(1)
Put the access platform in position below the applicable access panel 540HB, 640HB.
(2)
Remove the applicable access panel 540HB(640HB) (Ref. TASK 28-10-00-910-002), (Ref. TASK 28-12-46-000-001).
4. Procedure
_________
**ON A/C 001-001, 051-052,
(Ref. Fig. 401/TASK 28-25-46-991-001) R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 401-499, Post SB 28-1077 For A/C 001-001,051-052, (Ref. Fig. 401A/TASK 28-25-46-991-001-A) R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 401-499,
Subtask 28-25-46-020-050
A. Removal of the Refuel Spill-Pipe Diffuser
(1)
Remove the nuts (4) and the bolts (6) from the bracket.
(2)
Remove the bolts (7) and the washers (3) from the support brackets.
(3)
Remove the bolt (1) from the attachment bracket.
(4)
Remove the bolts (2) from the attachment bracket and remove the refuel spill-pipe diffuser (5).
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Refuel Spill-Pipe Diffuser
Figure 401/TASK 28-25-46-991-001
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Refuel Spill-Pipe Diffuser
Figure 401A/TASK 28-25-46-991-001-A
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TASK 28-25-46-400-001 Installation of the Refuel Spill-Pipe Diffuser WARNING : MAKE SURE THAT THE FLIGHT CONTROL SAFETY-LOCKS AND THE WARNING
_______ NOTICES ARE IN POSITION.
WARNING : MAKE SURE THAT THE GROUND SAFETY-LOCKS ARE IN POSITION ON THE LANDING
_______ GEAR.
1.
Reason for the Job
__________________
Self Explanatory
2.
Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
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No specific safety barriers
No specific access platform 3.0 m (9 ft. 10 in.)
B. Consumable Materials
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Material No. 09-007 USA MIL-S-4383 BRUSHABLE FUEL RESISTANT COATING (Ref. 20-31-00) Material No. 11-026 GB DEF-STAN 68-148/1 SOLVENT GENERAL PURPOSE (Ref. 20-31-00) Material No. 19-003 USA AMS 3819 LINT-FREE COTTON CLOTH (Ref. 20-31-00)
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