R C. Referenced Information
R -------------------------------------------------------------------------------R REFERENCE DESIGNATION R -------------------------------------------------------------------------------
R 12-11-28-650-003 R 28-10-00-910-001 R 28-10-00-910-002 R 28-12-45-000-001 R 28-12-45-400-002 R 28-12-46-000-001 R 28-12-46-400-001 R 28-12-47-000-001 R 28-12-47-400-001 R 28-25-00-650-001 R 28-25-00-650-003 R R 28-25-00-869-001 R 57-27-11-000-002 R R R R 57-27-11-400-002 R R R R ASRM 572100 R 57-21-00-991-023
R 3. Job Set-up
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R Subtask 57-21-00-941-071
R A. Safety Precautions Pressure Refuel with Automatic Control Safety Procedures When You Do Work in a Fuel Tank Access to the Fuel Tanks and the Work Areas Removal of the Panel Assembly 550CB(650CB) Installation of the Panel Assembly 550CB(650CB) Removal of the Overpressure-Protector Outlet Installation of the Overpressure-Protector Outlet Removal of the NACA Vent Intake Installation of the NACA Vent Intake Pressure Defuel To Drain Remaining Fuel from the Wing Tanks and the Center Tank Fuel Transfer Removal of the Access Panel (540HB, 540JB, 540KB, 540LB, 540MB, 540NB, 540PB, 540QB, 540RB, 550AB, 550BB, 550CB, 550DB, 560AB, 640HB, 640JB, 640KB, ....) Installation of the Access Panel (540HB, 540JB, 540KB, 540LB, 540MB, 540NB, 540PB, 540QB, 540RB, 550AB, 550BB, 550CB, 550DB, 560AB, 640HB, 640JB, ....) (for corrective action) Fig. 621
R WARNING : OBEY THE SAFETY PROCEDURES WHEN YOU DO WORK IN A FUEL TANK.
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R (1) You must obey the fuel safety procedures (Ref. TASK 28-10-00-910-001) R when you do work in a fuel tank.
R (2) Install the TOOL-ZERO LOCKING, FLAP SLAT CTL LEVER (98D27803500001) R on the flap/slat control lever.
R (3) Put warning notices in the cockpit to tell persons not to operate the R flaps or slats.
R (4) Put the safety barriers in position.
R Subtask 57-21-00-650-076
R B. Fuel Configuration
R (1) Defuel the applicable fuel tank (Ref. TASK 28-25-00-650-001).
R (2) Drain the remaining fuel from the applicable fuel tank (Ref. TASK 28-
R 25-00-650-003).
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 401-499,
R Subtask 57-21-00-010-065
R C. Get Access
R (1) Put the adjustable access platform in position below the wing fuel
R tank, zone 540 (640).
R (2) Remove the applicable access panels (Ref. TASK 28-12-45-000-001)
R (Ref. TASK 28-12-46-000-001) (Ref. TASK 28-12-47-000-001) (Ref. TASK
R 57-27-11-000-002) and (Ref. TASK 28-10-00-910-002):
R - for the left wing, remove 540HB, 540JB, 540KB, 540LB, 540MB, 540NB,
R 540PB, 540QB, 540RB, 550AB, 550BB, 550CB, 550DB, 560AB
R - for the right wing, remove 640HB, 640JB, 640KB, 640LB, 640MB,
R 640NB, 640PB, 640QB, 640RB, 650AB, 650BB, 650CB, 650DB, 660AB.
R **ON A/C 301-399,
R Subtask 57-21-00-010-065-A
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