WARNING:  SERIOUS INJURY CAN RESULT TO PERSONNEL IF GROUND LOCKS ARE NOT PROPERLY INSTALLED. ATTEMPT TO DEPLOY THRUST REVERSERS AFTER INSTALLING GROUND LOCKS. REVERSERS MUST NOT MOVE HYDRAULICALLY.
(3)  
Remove access panel from door fairing.

(4)  
Place soft, clearance putty (soft wax or clay) on top of each of the four spacers (8) and around each of the studs (5); minimum putty size 0.56 x 1.0 x 1.0 inch (approximately).

(5)  
Place one spacer (4) on each of the studs.

(6)  
Position deflector door fairing on deflector door so the studs (5) protrude through the rectangular cutouts in fittings on door fairing.

(7)  
Position door fairing into general lateral alignment with the wing- mounted aft fairing for detail C.

(8)  
Install a serrated plate (3) on each stud.

(9)  
Place a stackup of spacers (4) and/or washers on each stud until two stud threads protrude.

(10)
Install nut (1) on each stud and tighten evenly until the upper exterior surfaces of the aft fairing and the door fairing are within the step tolerances shown in detail B. Maintain lateral alignment obtained in step (7).

(11)
Adjust tightness of nuts (1) on aft studs as required to obtain a parallel gap between the skin trim on the inboard side of the door fairing and the outer skin surface of the door; gap to be within the limits shown in section A-A. The gap between the skin trim on the outboard side of the door fairing and the outer skin surface of the door at the marked forward and aft rigging points to be within the limits shown in section B-B and C-C.

(12)
Remove nuts (1), washer and/or spacers (4), plate (3) and door fairing from deflector door.

(13)
Measure total thickness of putty and spacer at each of the four stud locations. Convert these thickness measurements into corresponding thickness combinations of spacers (4) for each stud location. Place each spacer stackup on its corresponding stud.

(14)
Reinstall door fairing on deflector door.

(15)
Position door fairing into alignment with aft fairing within the limits shown in details B and C. Spacer gage may be used on aft fairing to establish gap between fairings.

(16)
Place a serrated plate (3) on each stud; place a stackup of unused spacers (4) in a thickness combination to sufficiently cover the protruding grip length above the serrated plate for each stud.

(17)
Install washers (2) and nuts (1) on each stud and tighten nuts evenly to 80 to 95 pound-inches.

NOTE: Nut must not bottom on stud threads.

(18)
Door fairing should be aligned to within tolerances defined in details B and C and sections A-A, B-B and C-C. If not repeat steps (4) thru (17).

(19)
Install access panel on fairing.

(20)
Reactivate thrust reverser hydraulic system by removing ground locks from both thrust reverser isolation valves.

500 
May 01/74  BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.  78-32-162 Page 405 

3.  Removal/Installation Tailpipe Fairing
A.  Remove Tailpipe Fairing
(1)  
Deactivate thrust reverser hydraulic system by installing ground locks on both thrust reverser isolation valves.

WARNING:  SERIOUS INJURY CAN RESULT TO PERSONNEL IF GROUND LOCKS ARE NOT PROPERLY INSTALLED. ATTEMPT TO DEPLOY THRUST REVERSERS AFTER INSTALLING GROUND LOCKS. REVERSERS SHOULD NOT DEPLOY.

(2)  
Release tension latches joining left and right removable tailpipe fairings by inserting screwdriver into each latch slot and pulling screwdriver handle downwards (Fig. 402).

500 
78-32-162 Page 406  BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.  Feb 15/80 

F80741
500  Tailpipe Fiaring Installation 
May 01/74  Figure 402  78-32-162 
Page 407 
BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. 

(3)  Raise tailpipe fairing to the open position, depress safety latch and pull fairing away from tailpipe extension.
B.  Install Tailpipe Fairing
(1)  
Position tailpipe fairings on fixed fairing in the fully open position, and engage hinge fittings on fixed fairing hinge rollers (Fig. 402).

(2)  
Lower tailpipe fairings to the closed position, and close tension latches.

(3)  
Reactivate thrust reverser hydraulic system by removing ground locks from both thrust reverser isolation valves.

4.  Removal/Installation Fixed Fairing
A.  Prepare for Removal
(1)  
Deactivate thrust reverser hydraulic system by installing ground locks on both thrust reverser isolation valves.
　
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