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0.2475 in
6.2865 mm
0.0762 mm
#4 BUSHING I.D. 0.2505 in
6.3627 mm
0.2515 in
6.3881 mm
0.2525 in
6.4135 mm
0.0040 in
#4 BOLT O.D. 0.2485 in
6.3119 mm
0.2495 in
6.3373 mm
0.2475 in
6.2865 mm
0.1016 mm
SUBTASK 27-11-31-020-005
(4) Do this task: Aileron Balance Panels Installation, TASK 27-11-31-400-801.
------------------------- END OF TASK ---------------------------
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Aileron Balance Panel Wear Limits
Figure 601 (Sheet 1 of 2)/27-11-31-990-807
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Aileron Balance Panel Wear Limits
Figure 601 (Sheet 2 of 2)/27-11-31-990-807
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TASK 27-11-31-210-801
3. Aileron Balance Panel Seals Visual Inspection
(Figure 602)
A. References
Reference Title
27-11-00-860-801 Remove Pressure from the Aileron Hydraulic Systems A and B
(P/B 201)
27-11-00-860-802 Put the Aileron Hydraulic Systems A and B Back to the Condition
Before Pressure Removal (P/B 201)
B. Location Zones
Zone Area
572 Left Wing - Aileron
672 Right Wing - Aileron
C. Access Panels
Number Name/Location
571BB Lower Outboard Fixed Trailing Edge Access Panel
571CB Lower Outboard Fixed Trailing Edge Access Panel
571DB Lower Outboard Fixed Trailing Edge Access Panel
671BB Lower Outboard Fixed Trailing Edge Access Panel
671CB Lower Outboard Fixed Trailing Edge Access Panel
671DB Lower Outboard Fixed Trailing Edge Access Panel
D. Procedure
SUBTASK 27-11-31-860-003
(1) Do this task: Remove Pressure from the Aileron Hydraulic Systems A and B,
TASK 27-11-00-860-801.
SUBTASK 27-11-31-010-002
(2) Remove the applicable access panels on the lower wing surface at the balance panel.
(a) For the left wing, open these access panels:
Number Name/Location
571BB Lower Outboard Fixed Trailing Edge Access Panel
571CB Lower Outboard Fixed Trailing Edge Access Panel
571DB Lower Outboard Fixed Trailing Edge Access Panel
(b) For the right wing, open these access panels:
Number Name/Location
671BB Lower Outboard Fixed Trailing Edge Access Panel
671CB Lower Outboard Fixed Trailing Edge Access Panel
671DB Lower Outboard Fixed Trailing Edge Access Panel
SUBTASK 27-11-31-210-001
(3) Do a visual inspection of the seals around the aileron balance panel.
(a) Make sure there are no creases, nicks, tears and punctures on the seals.
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E. Put the Airplane Back to Its Usual Condition
SUBTASK 27-11-31-840-001
(1) Do this task: Put the Aileron Hydraulic Systems A and B Back to the Condition Before
Pressure Removal, TASK 27-11-00-860-802.
SUBTASK 27-11-31-410-002
(2) Install the applicable access panels on the lower wing surface at the balance panel.
(a) For the left wing, close these access panels:
Number Name/Location
571BB Lower Outboard Fixed Trailing Edge Access Panel
571CB Lower Outboard Fixed Trailing Edge Access Panel
571DB Lower Outboard Fixed Trailing Edge Access Panel
(b) For the right wing, close these access panels:
Number Name/Location
671BB Lower Outboard Fixed Trailing Edge Access Panel
671CB Lower Outboard Fixed Trailing Edge Access Panel
671DB Lower Outboard Fixed Trailing Edge Access Panel
------------------------- END OF TASK ---------------------------
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EFFECTIVITY
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Aileron Balance Panel Seals Visual Inspection
Figure 602 (Sheet 1 of 3)/27-11-31-990-805
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EFFECTIVITY
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737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL飞机维护手册1(154)
