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SUBTASK 27-09-71-860-007
(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.
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Manual Reversion Force Correction
Figure 508/27-09-71-990-809
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Aileron Balance Tab Adjustment
Figure 509 (Sheet 1 of 2)/27-09-71-990-810
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Aileron Balance Tab Adjustment
Figure 509 (Sheet 2 of 2)/27-09-71-990-810
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TASK 27-09-71-820-803
4. Speed Brake Trim Adjustment for Rolloff Discrepancy Correction
A. References
Reference Title
27-61-00-820-804 Spoiler Actuator Linkage Adjustment (P/B 501)
B. 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-1691 Protractor - Digital, Vertical or Horizontal
(Part #: KS5549, Supplier: 75245, A/P Effectivity: 737-ALL)
C. Location Zones
Zone Area
562 Left Wing - Spoiler No. 5
563 Left Wing - Spoiler No. 4
564 Left Wing - Spoiler No. 3
565 Left Wing - Spoiler No. 2
662 Right Wing - Spoiler No. 8
663 Right Wing - Spoiler No. 9
664 Right Wing - Spoiler No. 10
665 Right Wing - Spoiler No. 11
D. Procedure
SUBTASK 27-09-71-480-001
(1) Install the protractor, COM-1691 on the applicable pair of flight spoilers 2, 3, 4, 5, 8, 9, 10 and 11.
(a) Adjust the protractor, COM-1691 to zero.
SUBTASK 27-09-71-220-001
(2) Do a check for symmetry between spoiler pairs 2 and 11, 3 and 10, 4 and 9, and 5 and 8:
(a) Move the speed brake lever until the spoiler 2 is up 15 ±1 degrees.
(b) Make sure the spoiler 11 is symmetrical to a limit of 0.5 degrees.
(c) Do the same symmetry check for the other spoiler pairs.
SUBTASK 27-09-71-820-006
(3) If it is necessary to adjust the flight spoiler positions to get the optimize symmetry, do this task:
Spoiler Actuator Linkage Adjustment, TASK 27-61-00-820-804.
E. Put the Airplane Back to Its Usual Condition
SUBTASK 27-09-71-860-008
(1) Move the speed brake lever to the DOWN position.
SUBTASK 27-09-71-080-001
(2) Remove the protractor, COM-1691 from the spoilers.
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TASK 27-09-71-860-801
5. Rudder Trim Adjustment for Power On Discrepancy Correction
A. General
(1) It is necessary to do the rudder power on discrepancy correction if the airplane does not meet
the rudder trim requirements shown in the table found in this task (TASK 27-09-71-820-801).
B. References
Reference Title
27-21-00-700-817-001 Rudder Travel Test (P/B 501)
27-21-00-700-817-002 Rudder Travel Test (P/B 501)
27-21-00-800-801 Rudder Hydraulic System A, B, or Standby Pressurization (P/B 201)
27-21-00-800-802 Remove Pressure from the Rudder Hydraulic Systems A, B, and
Standby (P/B 201)
27-21-00-820-809-001 Control Rod for Main Rudder Power Control Unit Adjustment
(P/B 501)
27-21-00-820-809-002 Control Rod for Main Rudder Power Control Unit Adjustment
(P/B 501)
27-21-00-820-810-001 Control Rod for Standby Rudder Power Control Unit Adjustment
(P/B 501)
27-21-00-820-810-002 Control Rod for Standby Rudder Power Control Unit Adjustment
(P/B 501)
C. Location Zones
Zone Area
325 Vertical Fin - Rudder
D. Procedure
SUBTASK 27-09-71-860-009
(1) Do this task: Rudder Hydraulic System A, B, or Standby Pressurization,
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737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL飞机维护手册1(90)
