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A. This procedure has these tasks:
(1) An adjustment of the outboard flap support fairing for the outboard flap
(2) An adjustment of the inboard flap support fairing for the outboard flap.
TASK 27-51-28-820-801
2. Outboard Flap Outboard Support Fairing Adjustment
(Figure 501)
A. General
(1) This task is applicable to the fairings at flap supports No. 1 and 8.
B. References
Reference Title
27-51-00-040-801 Trailing Edge Flap System Deactivation (P/B 201)
27-51-00-440-801 Trailing Edge Flap System Reactivation (P/B 201)
27-51-00-860-804 Retract the Trailing Edge Flaps (P/B 201)
27-51-28-000-801 Outboard Flap Outboard Support Forward Fairing Removal (P/B 401)
27-51-28-400-801 Outboard Flap Outboard Support Forward Fairing Installation
(P/B 401)
C. Consumable Materials
Reference Description Specification
C00259 Primer - Chemical And Solvent Resistant Finish,
Epoxy Resin
BMS10-11,
Type I
D. Expendables/Parts
AMM Item Description AIPC Reference AIPC Effectivity
3 Fairing assembly 27-51-28-01-025 GUN 001-028, 101-121,
155-157, 201-999
27-51-28-01-030 GUN 001-028, 101-121,
155-157, 201-999
27-51-28-02-005 GUN 001-019, 101-110,
155-157, 201-999
4 Fairing assembly 27-51-28-01-210 GUN 001-028, 101-121,
155-157, 201-999
27-51-28-01-215 GUN 001-028, 101-121,
155-157, 201-999
27-51-28-03-005 GUN 001-019, 101-110,
155-157, 201-999
15 Pin 27-51-28-01-110 GUN 001-028, 101-121,
155-157, 201-999
E. Location Zones
Zone Area
544 Left Wing - Fairing Flap Support No. 1
644 Right Wing - Fairing Flap Support No. 8
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
EFFECTIVITY
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BOEING PROPRIETARY - Copyright#Unpublished Work - See title page for details
F. Access Panels
Number Name/Location
544DR Flap Support No. 1 Access Door
644DL Flap Support No. 8, Access Door
G. Prepare for the Adjustment
SUBTASK 27-51-28-860-005
(1) If the trailing edge flaps are not in the retracted position, do this task: Retract the Trailing Edge
Flaps, TASK 27-51-00-860-804.
SUBTASK 27-51-28-040-005
(2) Do this task: Trailing Edge Flap System Deactivation, TASK 27-51-00-040-801.
H. Outboard Flap Outboard Support Aft Fairing Adjustment
SUBTASK 27-51-28-480-001
(1) Apply a 150 pound (68 kilogram) weight to preload the aft fairing assembly [4]:
(a) Put a strap across the top of the aft fairing assembly [4] at the line of fasteners for the
tailcone [5].
(b) Attach a 150 pound (68 kilogram) weight to the strap.
NOTE: Make sure the weight is evenly applied to the inboard and outboard sides of the
aft fairing assembly [4].
SUBTASK 27-51-28-820-005
(2) Move the preload pads [7] away from the aft flap [1]:
NOTE: It is necessary to move the preload pads [7] to correctly measure the clearance
between the aft flap [1] and the aft fairing assembly [4].
(a) Loosen the bolts [8] that attach the preload pads [7] to the aft fairing assembly [4].
(b) Move the preload pads [7] away from the lower surface of the aft flap [1].
SUBTASK 27-51-28-220-001
(3) Measure the clearance between the top surface of the aft fairing assembly [4] and the aft flap [1].
NOTE: Measure the clearance at the aft edge of the aft flap [1] on the sides of the aft fairing
assembly [4].
(a) Make sure the clearance is in the limit of 0.2639 ±0.05 inch (6.703 ±1.27 millimeters).
(b) Make sure the clearance is approximately the same on the inboard and outboard sides of
the aft fairing assembly [4].
SUBTASK 27-51-28-820-006
(4) If the clearance is not in the limit, or if it is not the same on the inboard and outboard sides, then
adjust the position of the aft fairing assembly [4]:
(a) On the side of the aft fairing assembly [4].
Open the applicable access panels:
Number Name/Location
544DR Flap Support No. 1 Access Door
644DL Flap Support No. 8, Access Door
(b) If the clearance is not the same on the inboard and outboard sides, adjust the length of the
adjust rod [21]:
1) Remove the weight from the aft fairing assembly [4].
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
EFFECTIVITY
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2) Remove the nut [14], washer [13], washer [11], bolt [10] and bushing [12] that attach the
drive rod [17] to the carriage [9].
NOTE: Support the aft fairing assembly [4] when you remove the bolt [10].
3) Lower the aft end of the aft fairing assembly [4] to get access to the adjust rod [21].
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737-600-700-800-900 飞机维护手册5 AIRCRAFT MAINTENANCE MANUA(39)
