_____________________________________________________________ REMOVAL/INSTALLATION
____________________
TASK 28-11-41-000-001
Removal of the Water Drain Valve 21QM (22QM)
WARNING : PUT THE SAFETY DEVICES AND THE WARNING NOTICES IN POSITION BEFORE YOU
_______ START A TASK ON OR NEAR:
-
THE FLIGHT CONTROLS
-
THE FLIGHT CONTROL SURFACES
-
THE LANDING GEAR AND THE RELATED DOORS
-COMPONENTS THAT MOVE. 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 4 m (13 ft. 1 in.)
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B. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
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 28-12-47-000-001 Removal of the NACA Vent Intake 28-25-00-650-003 To Drain Remaining Fuel from the Wing Tanks and the
Center Tank
R **ON A/C 001-001, 051-052,
28-11-41-991-001 Fig. 401
**ON A/C ALL
R Post SB 28-1077 For A/C 001-001,051-052, 28-11-41-991-001-A Fig. 401A **ON A/C ALL
3. Job Set-up
__________
Subtask 28-11-41-941-050
A. Safety Procedures WARNING : OBEY THE SAFETY PROCEDURES WHEN YOU DO WORK IN A FUEL TANK.
_______
(1) You must obey the safety precautions (Ref. TASK 28-10-00-910-001) when you do work in a fuel tank.
(2) Put the safety barriers in position.
Subtask 28-11-41-650-067
B. Fuel Configuration
(1) Drain all the fuel from the vent surge tank through the water drain valve (Ref. TASK 28-25-00-650-003).
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C. Get Access
(1)
Put the access platform below the applicable access panel 550AB(650AB).
(2)
Remove the NACA vent intake (Ref. TASK 28-10-00-910-002) (Ref. TASK 28-12-47-000-001).
4. Procedure
_________ R **ON A/C 001-001, 051-052,
(Ref. Fig. 401/TASK 28-11-41-991-001) **ON A/C ALL R Post SB 28-1077 For A/C 001-001,051-052, (Ref. Fig. 401A/TASK 28-11-41-991-001-A) **ON A/C ALL
Subtask 28-11-41-020-050
A. Removal of the Water Drain Valve
(1)
Remove the nuts (1) and the bolts (4).
(2)
Remove the water drain valve (2).
(3)
Remove and discard the O-rings (3) and (5).
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Water Drain Valve - Vent Surge Tank
Figure 401/TASK 28-11-41-991-001
R 1EFF : 001-001, 051-052, 1 28-11-41Page 404 1 1 May 01/05 1 1 1CES 1
Water Drain Valve - Vent Surge Tank Figure 401A/TASK 28-11-41-991-001-A
R 1EFF : 1 1 1CES ALL 1 111 28-11-41 Page 405 May 01/00
TASK 28-11-41-400-002
Installation of the Water Drain Valve 21QM (22QM)
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
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