-------------------------------------------------------------------------------
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 28-12-44-941-064
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.
(3)
Put a warning notice in position to tell persons not to operate the MLG doors.
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B. Aircraft Maintenance Configuration
(1)
Defuel the center tank (Ref. TASK 28-25-00-650-001).
(2)
Drain the remaining fuel from the center tank (Ref. TASK 28-25-00-650-003).
Subtask 28-12-44-010-053
C. Get Access WARNING : MAKE SURE THAT THE TRAVEL RANGES OF THE LANDING GEAR DOORS ARE
_______
CLEAR.
(1)
Open the LH MLG door (Ref. TASK 32-12-00-010-001).
(2)
Make sure that the GROUND LOCK SLEEVE (460005835) is installed on the LH MLG door actuator.
(3)
Put the access platform below the access panel 147AZ.
(4)
Remove the access panel 147AZ, (Ref. TASK 28-10-00-910-002), (Ref. TASK 57-17-11-000-001).
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)
1EFF : ALL 1 28-12-44Page 426 1 1 Aug 01/05 1 1 1CES 1R **ON A/C ALL
Subtask 28-12-44-020-053
A. Removal of the Check Valve 93QM
(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 (93QM)
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 warning notice 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 32-12-00-010-001 Open the Main Gear Doors for Access 32-12-00-410-001 Close the Main Gear Doors after Access 57-17-11-000-001 Removal of the Covers 147AZ (148AZ) 57-17-11-400-001 Installation of the Covers 147AZ (148AZ)
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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,
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