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(Part #: DPPH-150, Supplier: 92456, A/P Effectivity: 737-ALL)
(Part #: DPPH-50, Supplier: 92456, A/P Effectivity: 737-ALL)
(Part #: FDIX 100, Supplier: 0BFD9, A/P Effectivity: 737-ALL)
(Part #: FDIX 50, Supplier: 0BFD9, A/P Effectivity: 737-ALL)
(Part #: FDV 50, Supplier: 0BFD9, A/P Effectivity: 737-ALL)
(Opt Part #: FDI 100, Supplier: 0BFD9, A/P Effectivity: 737-ALL)
SPL-1569 Clamp - Control Cable
(Part #: A20005-9, Supplier: 81205, A/P Effectivity: 737-100, -200,
-200C, -300, -400, -500, -600, -700, -700C, -700ER, -700QC, -800, -900,
-900ER, -BBJ)
SPL-1684 Assembly - Wrench, Pinion Gear, Stabilizer Trim Actuator
(Part #: F71267, Supplier: 81205, A/P Effectivity: 737-100, -200, -200C,
-300, -400, -500, -600, -700, -700C, -700ER, -700QC, -800, -900, -900ER,
-BBJ)
(Opt Part #: F71252, Supplier: 81205, A/P Effectivity: 737-100, -200,
-200C, -300, -400, -500)
C. Location Zones
Zone Area
112 Area Forward of Nose Landing Gear Wheel Well
210 Subzone - Control Compartment - Body Station 178.00 to Body
Station 259.50
311 Area Aft of Pressure Bulkhead - Left
312 Area Aft of Pressure Bulkhead - Right
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D. Access Panels
Number Name/Location
112A Forward Access Door
311BL Stabilizer Trim Access Door
E. Prepare for the Removal
SUBTASK 27-41-82-860-001
(1) Set the stabilizer leading edge to the full down (airplane nose up) position.
SUBTASK 27-41-82-860-002
(2) Open these circuit breakers and install safety tags:
CAPT Electrical System Panel, P18-1
Row Col Number Name
C 2 C00849 AFCS STABILIZER TRIM
F/O Electrical System Panel, P6-2
Row Col Number Name
B 10 C00207 FLIGHT CONTROL STAB TRIM CONT
D 10 C00840 FLIGHT CONTROL STAB TRIM ACTUATOR
SUBTASK 27-41-82-010-001
(3) To get access to the stabilizer forward control mechanism, do this step:
Open this access panel:
Number Name/Location
112A Forward Access Door
SUBTASK 27-41-82-010-002
(4) To get access to the stabilizer trim actuator, do this step:
Open this access panel:
Number Name/Location
311BL Stabilizer Trim Access Door
SUBTASK 27-41-82-010-003
(5) Remove the cargo liners and floor panels at the locations shown in (Figure 402).
SUBTASK 27-41-82-820-001
CAUTION: MAKE SURE THE CHAIN IS LOOSE BEFORE YOU RELEASE THE CABLE TENSION.
TOO MUCH CABLE TENSION CAN CAUSE DAMAGE TO THE CHAIN.
(6) Adjust the upper adjusting nuts [7] of the aft support link [8] to loosen the chain (Figure 401).
SUBTASK 27-41-82-020-001
(7) Disconnect the upper turnbuckle [4].
SUBTASK 27-41-82-020-002
(8) Loosen the lower turnbuckle [3] to release the tension of the STA cable [6] and STB cable [5].
SUBTASK 27-41-82-020-003
(9) Do this task: Stabilizer Trim Motor Removal, TASK 27-41-71-000-801.
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F. Stabilizer Control Cable Removal
SUBTASK 27-41-82-020-004
(1) Remove the cable drum guard [28] and spacers [14] from the aft cable drum [15]:
(a) Remove the bolts [26] and washers [27] from the support plate [25].
(b) Remove the bolts [16] and washers [17] that attach the cable drum guard [28] to the aft
cable drum [15].
(c) Remove the nut [23], washer [22], washer [21], and bolt [20] that attach the cable drum
guard [28] to the support plate [25].
(d) Remove the cable drum guard [28] and spacers [14].
SUBTASK 27-41-82-020-005
(2) Disconnect the STB cable [5] from the aft cable drum [15]:
(a) Install the wrench, SPL-1684 on the internal spline of the jackscrew gearbox [12]
(Figure 401).
NOTE: Insert the arm of the wrench, SPL-1684, into the motor mount hole to keep the
internal spline of the jackscrew gearbox from turning.
(b) Use the force gauge, COM-1557, on the captain’s or first officer’s stabilizer trim wheel
handle to put a 50 lb (22.7 kg) load on the handle to stretch the STA cable [6].
NOTE: This will keep the STA cable [6] on the drum and will make the removal of the STB
cable [5] easier.
(c) Disconnect the STB cable [5] from the aft cable drum [15].
SUBTASK 27-41-82-020-006
(3) Remove the STB cable [5] from the cable run.
(a) Remove the arm of the wrench, SPL-1684 from the stabilizer trim motor mount hole.
(b) Using the captain’s or first officer’s stabilizer trim control wheel, move the jackscrew [11] to
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737-600-700-800-900 AIRCRAFT MAINTENANCE MANUAL飞机维护手册4(15)
