NOTE: Measure the clearance to the top of the fairing, not the bulb seal.
1) The clearance must be in the tolerance shown in Section B-B.
2) If the clearance is not in the tolerance, adjust the fairing.
(9)
Do a check of the adjustment of the preload pad:
(a)
Reduce the load on the fairings to 150 pounds.
(b)
Make sure there is not a clearance between the preload pad and the midflap.
(c)
If there is a clearance, adjust the preload pad.
(d)
Remove the load from the fairings.
(10)
Make sure the clearance from the support arm to the flap track and the carriage is a minimum of 0.08 inch at all flap settings.
(11)
Tighten adjustable fairing support strut jamnuts and lockwire. Tighten larger jamnut to 30-50 pound-inches, and smaller jamnut to 20-40 pound-inches.
(12)
Recheck that gap between aftflap trailing edge and flap track fairing is 0.10 inch maximum. If not, readjust per step 2.A.(2) thru 2.A.(3)(d).
(13)
Check for correct seal compression at leading edge of aftflap as follows:
(a)
With aftflap extended mark a line on lower surface of aftflap 2.00 inches aft of leading edge.
(b)
Retract aftflap then mark a line on lower surface of midflap 2.15 inches forward of line marked on aftflap.
(c)
Extend aftflap and check that aft face of seal retainer aligns with line marked on midflap.
(d)
If seal retainer does not align, loosen screws and adjust retainer to align. Tighten screws.
(14)
Make sure the bulb seals on the two sides of the fairing compress 0.003 to 0.08 inch.
(a) If the seal compression is not in the tolerance, adjust the seal retainer.
(15)
For No. 1 or 8 fairing, check operation of landing light (Ref\Chapter 33, Outboard Landing Lights).
543
May 01/01 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. 27-51-121 Page 505
3. Restore Airplane to Normal Configuration
A. Position flap control lever to FLAP UP detent.
B. Depressurize hydraulic system A (Ref 27-51-0 MP).
543
27-51-121 Page 506 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. Feb 20/91
F96448
501 Landing Light Adjustment
Aug 01/96 Figure 502 27-51-121
Page 507
BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.
OUTBOARD FLAP TRACK FAIRINGS - INSPECTION/CHECK
1. General
A. This data consists of illustrations and a wear limit chart. There will be no procedure given for gaining access to the component for removal or replacement after inspection for wear. (Ref Outboard Flap Track Fairings Removal/Installation for this information).
2. Outboard Flap Track Fairings Wear Limits (Fig. 601)
501
Aug 01/96 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. 27-51-121 Page 601
F96480
Outboard Flap Track Fairing Wear Limits 5A1
27-51-121 Figure 601 (Sheet 1) Aug 01/96
Page 602
BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.
INDEX NO. PART NAME DIM DESIGN LIMITS WEAR LIMTS REPLACE WORN PART REPAIR WORN PART REPAIR INSTR.
DIAMETER MAX WEAR DIM. MAX DIAM CLEAR-ANCE
MIN MAX
1 BUSHING ID 0.3820 0.3830 0.3935 0.0190 X
BOLT OD 0.3735 0.3745 0.3630 X
2 BUSHING ID 0.5002 0.5037 0.5095 0.0100 X
BUSHING OD 0.4985 0.4995 0.4902 X
3 BUSHING ID 0.3760 0.3787 0.3845 0.0100 X
BOLT OD 0.3735 0.3745 0.3660 X
4 BUSHING ID 0.1900 0.1915 0.1950 0.0050 X
FOLLOWER OD 0.1890 0.1900 0.1850 X
5 ROD END ID 0.1895 0.1900 0.1920 0.0020 X
FOLLOWER OD 0.1890 0.1900 0.1875 X
6 BUSHING ID 0.1900 0.1940 0.1995 0.010 X
BOLT OD 0.1885 0.1895 0.1800 X
7 BEARING ID 0.1895 0.1900 0.1905 0.010 X
BOLT OD 0.1885 0.1895 0.1885 X
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