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(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. Prepare for the Removal
SUBTASK 27-11-31-860-001
WARNING: MAKE SURE THE DOWNLOCK PINS ARE INSTALLED ON ALL THE LANDING GEARS.
WITHOUT THE DOWNLOCK PINS, THE LANDING GEARS COULD RETRACT AND
CAUSE INJURIES TO PERSONS AND DAMAGE TO EQUIPMENT.
(1) Do this task: Remove Pressure from the Aileron Hydraulic Systems A and B,
TASK 27-11-00-860-801.
SUBTASK 27-11-31-010-001
(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
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(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
E. Aileron Balance Panels Removal
SUBTASK 27-11-31-020-001
(1) Remove the balance panel assembly [22], balance panel assembly [23], balance panel
assembly [24] or balance panel assembly [25]:
(a) Remove the bolts [1] and [14] to remove the seal retainers [27] and [30] from the
aerodynamic seals [15].
(b) Write down the location and number of balance weights [11] installed on the balance panel
assembly [24] or balance panel assembly [25].
(c) Remove the bolts [12] to remove the balance weights [11] from the hinge seal [29].
(d) Remove bolts [4], [5], [21] and bolts [2] with collars [3] to remove the balance weights [19]
and hinge seal [29] from the aileron balance panel assembly [22], panel assembly [23],
panel assembly [24] or panel assembly [25].
(e) Remove the bolts [16] and washers [17] to remove the seal retainer [18] from the hinge seal
[20].
(f) Remove the pins [10], nuts [9], washers [8], washers [7] and bolts [6] to remove the balance
panel assembly [22], balance panel assembly [23], balance panel assembly [24] or balance
panel assembly [25] from the aileron. Discard the pin [10].
(g) Remove the pins [10], nuts [9], washers [8], washers [7] and bolts [26] to remove the
balance panel assembly [22], balance panel assembly [23], balance panel assembly [24] or
balance panel assembly [25] from the wing structure. Discard the pin [10].
------------------------- END OF TASK ---------------------------
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Aileron Balance Panel Installation
Figure 401 (Sheet 1 of 3)/27-11-31-990-801
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Aileron Balance Panel Installation
Figure 401 (Sheet 2 of 3)/27-11-31-990-801
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Aileron Balance Panel Installation
Figure 401 (Sheet 3 of 3)/27-11-31-990-801
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TASK 27-11-31-400-801
3. Aileron Balance Panels Installation
(Figure 401)
A. References
Reference Title
27-11-00-700-809 Aileron Travel Test (P/B 501)
27-11-00-860-802 Put the Aileron Hydraulic Systems A and B Back to the Condition
Before Pressure Removal (P/B 201)
27-11-31-210-801 Aileron Balance Panel Seals Visual Inspection (P/B 601)
B. Tools/Equipment
Reference Description
　
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航空翻譯 www.aviation.cn
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