(2)
Engage cam follower with cam landing light track and install bolts in cam track.
(3)
Install landing light electrical connector at forward end of fairing.
F. If cam track has been replaced, check cam track roller alignment as follows:
(1)
Remove tail cone from fairing.
(2)
Provide system A hydraulic power (Ref 27-51-0).
(3)
Slowly cycle flaps and check that bellcrank does not interfere with cam track during retraction and extension of flaps. If interference occurs, laminated shims at track attach bolts may be tapered as necessary to provide proper alignment.
(4)
Install tail cone.
G. Adjust fairing (Ref 27-51-121 - Adjustment/Test).
3. Restore Airplane to Normal Configuration
A. Position flap control lever to FLAP UP detent.
B. Depressurize hydraulic system A (Ref 27-51-0, Maintenance Practices).
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OUTBOARD FLAP TRACK FAIRINGS - ADJUSTMENT/TEST
1. General
A. This procedure covers both the inboard and outboard movable fairings of the outboard flaps.
2. Outboard Flap Track Fairings Adjustment
A. Adjust Flap Track Fairing
(1)
Provide hydraulic system A power (Ref 27-51-0 MP).
(2)
Position flap control lever to FLAP UP detent to retract flaps.
(3)
Check that gap between aft flap trailing edge and flap track fairing is 0.10 inch maximum on each side of fairing, if not:
(a)
Position flap control lever to 40-unit detent to extend flaps.
(b)
Disconnect aftflap pushrods and move aftflap full forward.
(c)
Loosen jamnuts on support struts and turn coupling to reduce gap to less than 0.10 inch (Detail B, Fig. 501).
CAUTION: TO REDUCE STRAIN ON FAIRING SUPPORT STRUTS, ADJUST BOTH STRUTS SIMULTANEOUSLY.
NOTE: Support strut jamnuts may be left untorqued at this time.
(d) Connect aftflap pushrods with boltheads up. Tighten nuts and install cotter pins.
CAUTION: BOLTS MUST BE INSTALLED WITH HEADS UP TO PREVENT BOLTS FROM DAMAGING MIDFLAP AND/OR AFTFLAP PUSHRODS AND AFTFLAP.
543
Feb 20/91 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. 27-51-121 Page 501
G21345G42439
Outboard Flap Track Fairing Adjustment 543
27-51-121 Figure 501 (Sheet 1) Aug 15/76
Page 502
BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.
502 Outboard Flap Track Fairing Adjustment
Feb 20/89 Figure 501 (Sheet 2) 27-51-121
Page 503
BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.
Outboard Flap Aft Flap Installation 500
27-51-121 Figure 501 (Sheet 3) May 01/99
Page 504
BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.
(4)
For No. 1 or 8 fairing, check that rigging pin can be inserted through landing light actuating arm and light body (Detail A, Fig. 502). If not, adjust pushrod to allow installation of rig pin.
NOTE: If landing light is not installed, refer to Chapter 33, Outboard Landing Lights.
(5)
Extend flaps to 40-unit detent and check that mid-to-aftflap gap and dimension B are per section B-B. Adjust aftflap bellcrank clevis arm (detail A) at both flap tracks on one or both wings, if required to obtain correct gaps and dimensions.
(6)
Retract flaps and check that gap between aftflap leading edge and midflap trailing edge is per section B-B. Adjust aftflap pushrod (detail A), if required to obtain correct gap.
(7)
Measure the clearance between the leading edge of the aftflap and the midflap.
(a)
Make sure the clearance is in the tolerance shown in Section C-C, Fig. 501.
(b)
If the clearance is not in the tolerance, adjust the aftflap pushrods.
(8)
Measure the preload of the fairing against the bottom of the flap:
(a)
Put a strap across the top of the aft fairing along the line of screws attaching the tailcone.
(b)
Apply a 200-pound weight to the strap.
(c)
Measure the clearance on the two sides of the fairing between the trailing edge of the aftflap and the top of the fairing.
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