B. Leak Test of the Main Fuel-Pump-System Pipelines (Right Wing, Fuselage and Center Tank)
-------------------------------------------------------------------------------ACTION RESULT -------------------------------------------------------------------------------
1. On the panel 40VU:
-push (in) the L TK PUMP 1 and PUMP 2 P/BSWs.
2.
Make sure that fuel does not leak from the relevant pipe(s).
3.
On the panel 40VU:
On the panel 40VU:
-
the L TK PUMP 1 and PUMP 2 OFF lightsgo off
-
the L TK PUMP 1 and PUMP 2 P/BSW FAULT lights come on momentarily and then go off.
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-------------------------------------------------------------------------------ACTION RESULT -------------------------------------------------------------------------------
-release (out) the L TK PUMP 1 - the L TK PUMP 1 and PUMP 2 P/BSW OFF and 2 P/BSWs. lights come on.
5. Close-up
________ Subtask 28-21-00-860-077
A. Aircraft Configuration
(1)
On the panel 40VU:
-release (out) the X-FEED P/BSW.
(2)
Do the EIS stop procedure (Ref. TASK 31-60-00-860-002).
(3)
De-energize the aircraft electrical circuits (Ref. TASK 24-41-00-862-002).
Subtask 28-21-00-942-075
B. Removal of Equipment
(1)
Make sure that the work area is clean and clear of tool(s) and other items.
(2)
Remove the safety barriers.
(3)
Remove the ground support and maintenance equipment, the special and standard tools and all other items.
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TASK 28-21-00-790-002
Visual Check of Pipes, Couplings and LP Valve External to Tank From Front Spar to HP Valve For Leaks With Booster Pump On and LP Valve Open
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
__________________
Refer to the MPD TASK: 282100-05 Check Pipes, Couplings and Low Pressure Valve External to Tank From Front Spar to High Pressure Valve For Leaks With Booster Pumps On and Low Pressure Valve Open.
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION
-------------------------------------------------------------------------------
No specific circuit breaker(s) safety clip(s)
No specific safety barriers
No specific access platform 2 m (6 ft. 7 in.)
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B. Referenced Information
-------------------------------------------------------------------------------
REFERENCE DESIGNATION
-------------------------------------------------------------------------------
12-11-28-650-003 Pressure Refuel with Automatic Control
24-41-00-861-002 Energize the Aircraft Electrical Circuits from the External Power
24-41-00-862-002 De-energize the Aircraft Electrical Circuits Supplied
from the External Power
28-00-00-910-001 Fuel Safety Procedures
31-60-00-860-001 EIS Start Procedure
31-60-00-860-002 EIS Stop Procedure
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 401-499,
28-21-00-991-001 Fig. 501
**ON A/C 301-399,
28-21-00-991-001-A Fig. 501A
**ON A/C ALL
28-21-00-991-002 Fig. 502
3. Job Set-up
__________
Subtask 28-21-00-941-053
A. Safety Precautions
WARNING : OBEY THE FUEL SAFETY PROCEDURES.
_______
(1)
You must obey the fuel safety procedures (Ref. TASK 28-00-00-910-001) when you do work on the fuel system.
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