B. Removal of Equipment
(1)
Remove the safety barriers.
(2)
Remove the warning notice(s).
(3)
Remove the access platform(s).
(4)
Remove the ground support and maintenance equipment, the special and standard tools and all other items.
R 1EFF : 001-049, 051-099, 101-149, 151-199, 1 28-21-43Page 411 1201-299, 401-499, 1Aug 01/05 1 1 1CES 1
R **ON A/C 301-399,
R TASK 28-21-43-000-002
R Removal of the Fuel-Pump Check-Valve 149QM(152QM), 150QM(151QM)
R WARNING : PUT THE SAFETY DEVICES AND THE WARNING NOTICES IN POSITION BEFORE YOU_______
R START A TASK ON OR NEAR:
R - THE FLIGHT CONTROLS
R - THE FLIGHT CONTROL SURFACES
R - THE LANDING GEAR AND THE RELATED DOORS
R - COMPONENTS THAT MOVE.
R WARNING : MAKE SURE THAT THE GROUND SAFETY-LOCKS ARE IN POSITION ON THE LANDING_______
R GEAR.
R 1. Reason for the Job__________________
R Self Explanatory
R 2. Job Set-up Information______________________
R A. Fixtures, Tools, Test and Support Equipment
R -------------------------------------------------------------------------------
R REFERENCE QTY DESIGNATION
R -------------------------------------------------------------------------------
R No specific circuit breaker(s) safety clip(s)
R No specific safety barriers
R No specific access platform 3 m (9 ft. 10 in.)
R 98D57004014000 1 HOOK-COVER (RIB2-SURGE DOORS)
R 1EFF : 301-399, 1 28-21-43Page 412 1 1 May 01/04 1 1 1CES 1 B. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
28-00-00-000-001 Removal of the Fuel Pipes 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
57-27-11-000-001 Removal of the Access Panel (540AB, 540BB, 540CB, 540DB, 540EB, 540FB, 540GB, 640AB, 640BB, 640CB, 640DB, 640EB, 640FB, 640GB)
28-21-43-991-002 Fig. 402
3. Job Set-up
__________
Subtask 28-21-43-941-055
A. Safety Precautions
WARNING : OBEY THE SAFETY PROCEDURES WHEN YOU DO WORK IN A FUEL TANK.
_______
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.
(2) Put the safety barriers in position.
Subtask 28-21-43-865-052
B. Open, safety and tag this(these) circuit breaker(s):
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------121VU FUEL/L WING TK/PUMP2 SPLY 7QA N26 121VU FUEL/L WING TK/PUMP1 SPLY 1QA N23 121VU FUEL/R WING TK/PUMP2 SPLY 8QA Q26 121VU FUEL/R WING TK/PUMP1 SPLY 2QA Q23 123VU L WING TK/PUMP 1/STBY SPLY 11QA AD12 123VU R WING TK/PUMP 1/STBY SPLY 12QA AE12
1EFF : 301-399, 1 28-21-43Page 413 1 1 Aug 01/04 1 1 1CES 1
R Subtask 28-21-43-650-052
R C. 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 Subtask 28-21-43-010-051
R D. Get Access
R (1) Put an access platform in position below the applicable access panel:
R - FOR 149QM, 150QM
R below 540AB
R - FOR 151QM, 152QM
R below 640AB.
R (2) Remove the applicable access panel (Ref. TASK 28-10-00-910-002),
R (Ref. TASK 57-27-11-000-001):
R - FOR 149QM, 150QM
R remove 540AB
R - FOR 151QM, 152QM
R remove 640AB.
R (3) Get access to the applicable check valve through the related
R spring-loaded surge door:
R - FOR 149QM, 150QM
R through 540BZ
R - FOR 151QM, 152QM
R through 640BZ.
R (4) Safety open the related spring-loaded surge door with the HOOK-COVER
R (RIB2-SURGE DOORS) (98D57004014000).
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