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 (2) Long Fuel Pipes
 The long fuel pipes between RIB15 and RIB21 are removed as follows: - remove the wingtip (Ref. TASK 57-31-21-000-001) - remove the long pipes through RIB27.
 Subtask 28-00-00-941-050
 B. Safety Precautions
 WARNING : OBEY THE SAFETY PROCEDURES WHEN YOU DO WORK IN A FUEL TANK._______
 WARNING : YOU MUST USE THE NECESSARY PRECAUTIONS TO PREVENT INJURY FROM_______ HEAT. THE LOCATION FOR THIS TASK CAN BE VERY HOT.
 (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.
 Subtask 28-00-00-860-050
 C. Aircraft Maintenance Configuration
 (1) Defuel or transfer fuel from the applicable fuel tank (Ref. TASK 28-25-00-650-001) (Ref. TASK 28-25-00-869-001).
 (2) If necessary, drain the remaining fuel from the applicable fuel tank(s) (Ref. TASK 28-25-00-650-003).

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 D. Get Access
 (1)
 Get access to the applicable fuel tank or work area (Ref. TASK 28-10-00-910-002):

 (a)
 For the LH and RH wing (Ref. TASK 57-27-11-000-001), (Ref. TASK 57-27-11-000-002).

 (b)
 If applicable, remove the wing-tip (Ref. TASK 57-31-21-000-001).

 

 (2)
 For access at FR42, remove the access cover 147AZ/148AZ (Ref. TASK 57-17-11-000-001).

 4. Procedure
_________ Subtask 28-00-00-020-050
 A. Removal of the Fuel Pipes
 (Ref. Fig. 401/TASK 28-00-00-991-001)

 (1)
 For joint types (detail A):

 (a)
 Remove the nut (7), the screw (5) and the bonding strap (6).

 (b)
 Remove the nuts (3) and the bolts (4).

 (c)
 Compress the sliding joints to move the end connectors (1) apart.

 (d)
 Remove and discard the O-ring (2).

 

 (2)
 For joint types (detail B):

 (a)
 Remove the nut (13), the screw (12) and the bonding strap (11).

 (b)
 Remove the nuts (8) and the bolts (10) from the rib connectors

 (9)
 (one at each end of the fuel pipe).

 (c)
 Remove the pipe and the rib connectors (9) together.

 (d)
 Remove the rib connectors (9) and the O-rings (14) from the pipe. Discard the O-rings (14).

 

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R  (3) For joint types (detail C): 
R  (a) Remove the nut (23), the screw (22) and the bonding strap (21). 
R  (b) Remove the retaining nuts (15) and (24). 
R  (c) Compress the sliding joint for removal. 
R  (d) Remove and discard the O-ring (26). 
R  (e) If it is necessary to remove the rib connectors (25) and (19), 
R  then remove the nuts (18) and the bolts (20). Remove the rib 
R  connectors (25) and (19). 
R  (4) For detail D joint types: 
R  (a) Remove the retaining nuts (31). 
R  (b) Remove and discard the O-rings (33). 
R  (c) Keep the connector (32) with the fuel pipe. 
R  (5) To remove the fairleads (detail F): 
R  (a) Remove the nut (40), the screw (38) and the bonding strap (39). 
R  (b) Remove the nuts (34), the bolts (41) and the washers (42). 
R  (c) Remove the nuts (36) and the bolts (35). 
R  (d) Remove the two halves of the fairlead (37). 
R  (6) For joint types (detail G): 
R  (a) Remove the nut (48), the screw (47) and the bonding strap (46). 
R  (b) Release the retaining nuts (44). 
R  (c) Compress the sliding joints for removal. 
R  (d) Remove and discard the O-rings (49). 
R  (e) If it is necessary to remove the rib connector (45), then remove 
R  the nuts (51) and the bolts (50). Remove the rib connector (45) 
R  through the rib.

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 TASK 28-00-00-400-001
 Installation of the Fuel Pipes
 WARNING : OBEY THE FUEL SAFETY PROCEDURES.

_______
 WARNING : DO NOT GET AIRCRAFT FUEL:

_______
 -
IN YOUR MOUTH

 -
IN YOUR EYES

 -ON YOUR SKIN FOR A LONG TIME.
 AIRCRAFT FUEL IS POISONOUS.

 WARNING : DO NOT GET YOUR CLOTHES SOAKED WITH FUEL.
_______
 WARNING : PUT THE SAFETY DEVICES AND THE WARNING NOTICES IN POSITION BEFORE YOU
　
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