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Outboard Aft Flap Drive Mechanism Adjustment
Figure 402 (Sheet 2 of 3)/27-51-24-990-802
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
EFFECTIVITY
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Outboard Aft Flap Drive Mechanism Adjustment
Figure 402 (Sheet 3 of 3)/27-51-24-990-802
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
EFFECTIVITY
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Oct 10/2003
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OUTBOARD FLAP TRACKS - REMOVAL/INSTALLATION
1. General
A. This procedure has these tasks:
(1) A removal of the outboard track for the outboard flap
(2) An installation of the outboard track for the outboard flap
(3) A removal of the inboard track for the outboard flap
(4) An installation of the inboard track for the outboard flap.
TASK 27-51-25-000-801
2. Outboard Flap Outboard Track Removal
(Figure 401)
A. General
(1) This task is applicable to the flap tracks at flap supports No. 1 and 8.
B. References
Reference Title
27-51-00-040-801 Trailing Edge Flap System Deactivation (P/B 201)
27-51-00-860-803 Extend the Trailing Edge Flaps (P/B 201)
27-51-21-000-801 Outboard Trailing Edge Flap Removal (P/B 401)
27-51-28-000-801 Outboard Flap Outboard Support Forward Fairing Removal (P/B 401)
27-51-28-000-802 Outboard Flap Outboard Support Aft Fairing Removal (P/B 401)
27-51-41-000-801 Outboard Flap Outboard Transmission Removal (P/B 401)
27-59-02-000-801 Outboard Flap Outboard Skew Mechanism Removal (P/B 201)
C. Tools/Equipment
NOTE: When more than one tool part number is listed under the same "Reference" number, the
tools shown are alternates to each other within the same airplane series. Tool part numbers
that are replaced or non-procurable are preceded by "Opt:", which stands for Optional.
Reference Description
COM-1568 Jack - Hydraulic, General Low Profile
(Part #: B67563, Supplier: 36251, A/P Effectivity: 737-ALL)
(Part #: HW93718, Supplier: 28047, A/P Effectivity: 737-ALL)
(Opt Part #: W93718, Supplier: 36251, A/P Effectivity: 737-ALL)
SPL-1733 Adapter - Hoist, Removal/Installation, Flap Track
(Part #: C27040-1, Supplier: 81205, A/P Effectivity: 737-600, -700,
-700C, -700ER, -700QC, -800, -900, -900ER, -BBJ)
D. Location Zones
Zone Area
544 Left Wing - Fairing Flap Support No. 1
644 Right Wing - Fairing Flap Support No. 8
E. Prepare for the Removal
SUBTASK 27-51-25-860-001
(1) Extend the trailing edge flaps to the 40-unit position. To extend them, do this task: Extend the
Trailing Edge Flaps, TASK 27-51-00-860-803.
SUBTASK 27-51-25-040-001
(2) Do this task: Trailing Edge Flap System Deactivation, TASK 27-51-00-040-801.
737-600/700/800/900
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EFFECTIVITY
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SUBTASK 27-51-25-010-001
(3) Remove the fairings for the outboard track on the outboard flap:
(a) Do this task: Outboard Flap Outboard Support Forward Fairing Removal,
TASK 27-51-28-000-801.
(b) Do this task: Outboard Flap Outboard Support Aft Fairing Removal,
TASK 27-51-28-000-802.
SUBTASK 27-51-25-020-001
(4) Do this task: Outboard Trailing Edge Flap Removal, TASK 27-51-21-000-801.
SUBTASK 27-51-25-020-002
(5) Do this task: Outboard Flap Outboard Skew Mechanism Removal, TASK 27-59-02-000-801.
SUBTASK 27-51-25-020-003
(6) Do this task: Outboard Flap Outboard Transmission Removal, TASK 27-51-41-000-801.
F. Outboard Flap Outboard Track Removal
NOTE: Make sure you support the flap track while you disconnect it. The outboard track for the
outboard flap weighs approximately 110 pounds (50 kilograms).
SUBTASK 27-51-25-480-001
(1) If you will use the adapter, SPL-1733, install it on the flap track [1]:
(a) Install the adapter, SPL-1733 on the flap track [1] approximately 33 inches (84 cm) aft of the
track attach fitting.
(b) Put a low profile hydraulic jack, COM-1568 below the adapter, SPL-1733 to support the flap
track [1].
SUBTASK 27-51-25-020-004
(2) Remove the nut [15], washers [14], washer [12] and bolt [13] to disconnect the jumper wire [16]
from the flap track [1].
SUBTASK 27-51-25-020-005
(3) Disconnect the forward end of the flap track [1]:
(a) Remove the bolts [18] and washers [17] that attach the failsafe fitting assembly [19] to the
track attach fitting.
(b) Remove the nut [22], washer [21] and fuse pin [20] from the forward end of the flap track [1].
　
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