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(a) Remove the nut [16], washer [15], washer [13] bolt [12] and bushing [14] that attach the
drive rod [8] to the inboard flap [1].
(b) Lower the aft end of the aft fairing assembly [3] to get access to the fasteners for the seals
[18].
(c) Loosen the nuts [19] on the retainer [20].
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(d) Move the seal [18] and the retainer [20].
NOTE: Make sure you move the seal [18] and the retainer [20] together as a unit.
(e) Tighten the nuts [19] that hold the retainer [20].
(f) Lift the aft end of the aft fairing assembly [3] to align the drive rod [8] with the inboard flap
[1].
(g) Install the bushing [14], bolt [12], washer [13], washer [15] and nut [16].
(h) Install the pin [17] in the nut [16].
H. Inboard Flap Outboard Forward Fairing Adjustment
SUBTASK 27-51-18-220-003
(1) Measure the mismatch between the forward fairing assembly [2] and the aft fairing assembly [3].
NOTE: Measure the mismatch on the inboard side and on the bottom of the forward fairing
assembly [2].
(a) Make sure the mismatch is in the limit of +0.03 to -0.01 inch (+0.76 to -0.25 millimeter).
NOTE: A positive (+) mismatch is when the forward fairing assembly [2] extends past
the aft fairing assembly [3]. A negative (-) mismatch is when the aft fairing
assembly [3] extends past the forward fairing assembly [2].
SUBTASK 27-51-18-220-004
(2) Make sure the seals [26] on the sides of the forward fairing assembly [2] are compressed evenly
against the lower surface of the wing.
SUBTASK 27-51-18-020-006
(3) If the mismatch is not in the limit or if the seals [26] are not compressed evenly, do this task:
Inboard Flap Support Forward Fairing Removal, TASK 27-51-18-000-801.
SUBTASK 27-51-18-820-005
(4) If the mismatch between the forward fairing assembly [2] and the aft fairing assembly [3] is not in
the limit, then adjust the position of the forward fairing assembly [2]:
(a) If the mismatch is not in the limit on the inboard side of the forward fairing assembly [2],
adjust the position of the fairing attach fitting [24]:
1) Loosen the bolts [23] that attach the fairing attach fitting [24] to the transmission attach
fitting [21].
2) Move the fairing attach fitting [24] inboard or outboard to get the mismatch in the limit.
3) Tighten the bolts [23].
(b) If the mismatch is not in the limit on the bottom of the forward fairing assembly [2], change
the thickness of the shims [25].
1) Apply primer, C00259 to the mating surfaces of the shim [25] and the fairing attach
fitting [24].
SUBTASK 27-51-18-820-006
(5) If the seals [26] are not compressed evenly against the lower surface of the wing, adjust the
position of the seals [26]:
(a) Loosen the nuts [27] on the retainer [28].
(b) Move the seal [26] and the retainer [28].
NOTE: Make sure you move the seal [26] and the retainer [28] together as a unit.
(c) Tighten the nuts [27] that hold the retainer [28].
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SUBTASK 27-51-18-420-004
(6) If you removed the forward fairing assembly [2], do this task: Inboard Flap Support Forward
Fairing Installation, TASK 27-51-18-400-801.
I. Put the Airplane Back to Its Usual Condition
SUBTASK 27-51-18-010-004
(1) Install the tailcone assembly [4] on the aft fairing assembly [3]:
(a) Put the tailcone assembly [4] in its location on the aft fairing assembly [3].
(b) Install the bolts [6] that attach the tailcone assembly [4].
(c) Fill and aerodynamically fair the clearance between the tailcone assembly [4] and the aft
fairing assembly [3] with sealant, A02315.
SUBTASK 27-51-18-440-003
(2) Do this task: Trailing Edge Flap System Reactivation, TASK 27-51-00-440-801.
------------------------- END OF TASK ---------------------------
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Inboard Flap Support Fairing Adjustment
Figure 501 (Sheet 1 of 4)/27-51-18-990-802
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Inboard Flap Support Fairing Adjustment
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737-600-700-800-900 AIRCRAFT MAINTENANCE MANUAL飞机维护手册4(128)
