-------------------------------------------------------------------------------
REFERENCE DESIGNATION -------------------------------------------------------------------------------
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 401-499,
28-12-44-991-001 Fig. 401
**ON A/C 301-399,
28-12-44-991-001-A Fig. 401A
**ON A/C ALL
3. Job Set-up
__________ R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 401-499,
(Ref. Fig. 401/TASK 28-12-44-991-001)
**ON A/C 301-399,
(Ref. Fig. 401A/TASK 28-12-44-991-001-A)
**ON A/C ALL
Subtask 28-12-44-941-063
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. Aircraft Maintenance 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 28-12-44-010-052
C. Get Access
(1)
Put the access platform below the applicable access door 540AB(640AB).
(2)
Remove the applicable access panel 540AB(640AB) (Ref. TASK 28-10-00-910-002), (Ref. TASK 57-27-11-000-001).
(3)
Open the aft surge door 540BZ(640BZ).
(4)
Install the HOOK-COVER (RIB2-SURGE DOORS) (98D57004014000) to hold the surge door open.
4. Procedure
_________ R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 401-499,
(Ref. Fig. 401/TASK 28-12-44-991-001)
**ON A/C 301-399,
(Ref. Fig. 401A/TASK 28-12-44-991-001-A)
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Subtask 28-12-44-020-052
A. Removal of the Check Valve 120QM(121QM)
(1)
Loosen the clamp (2) and move it along the pipe (1) away from the check-valve (3).
(2)
Remove the check-valve (3) from the pipe (1) and remove the clamp (2).
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Installation of the Check Valve 120QM (121QM)
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
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION
-------------------------------------------------------------------------------
No specific safety barriers
No specific access platform 2.8 m (9 ft. 2 in.)
B. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
12-11-28-650-003 Pressure Refuel with Automatic Control 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 28-25-00-650-001 Pressure Defuel 28-25-00-650-003 To Drain Remaining Fuel from the Wing Tanks and the
Center Tank 28-25-00-869-001 Fuel Transfer 57-27-11-000-001 Removal of the Access Panel (540AB, 540BB, 540CB,
540DB, 540EB, 540FB, 540GB, 640AB, 640BB, 640CB, 640DB, 640EB, 640FB, 640GB)
57-27-11-400-001 Installation of the Access Panel (540AB, 540BB, 540CB, 540DB, 540EB, 540FB, 540GB, 640AB, 640BB, 640CB, 640DB, 640EB, 640FB, 640GB)
1EFF : ALL 1 28-12-44Page 420 1 1 May 01/04R 1 1 1CES 1
-------------------------------------------------------------------------------
REFERENCE DESIGNATION -------------------------------------------------------------------------------
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 401-499,
28-12-44-991-001 Fig. 401
**ON A/C 301-399,
28-12-44-991-001-A Fig. 401A
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