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REFERENCE DESIGNATION
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AMM 27-44-51-000-001 Removal of the Trimmable Horizontal Stabilizer (THS) Actuator (9CE) AMM 27-44-51-400-001 Installation of the Trimmable Horizontal Stabilizer (THS) Actuator (9CE) AMM 27-44-57-000-001 Removal of the Pitch Trim Actuator from the THS Actuator 9CE AMM 27-44-57-400-001 Installation of the Pitch Trim Actuator to the THS Actuator 9CE
AMM 29-23-00-863-001 Pressurize the Green Hydraulic System from the Yellow Hydraulic System through the PTU with the Electric Pump
AMM 29-23-00-864-001 Depressurize the Green and Yellow Hydraulic Systems after Operation of the PTU AMM 29-24-00-863-001 Pressurize the Yellow Hydraulic System with the Electric Pump
AMM 29-24-00-864-001 Depressurize the Yellow Hydraulic System
R AMM 53-59-00-210-001 Operational Check of Single Drain Pipe Aft of FR70
R from Outside
R 27-40-00-991-001 Fig. 201
3. Fault Confirmation
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A. Test
NOTE : Make sure that there is no message on EFCS LAST LEG REPORT
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(1) Do a functional test of the THS-actuator overtravel related to the mechanical indicator (Ref. AMM TASK 27-41-00-720-001).
4. Fault Isolation
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WARNING : MAKE SURE THAT THE ELAC'S ARE ELECTRICALLY ISOLATED DURING WORK ON
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THE MECHANICAL CONTROL SYSTEM OF THE THS.
IF NOT, PARTS CAN MOVE AND CAUSE INJURY AND/OR DAMAGE.
A. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------49VU FLIGHT CONTROLS/ELAC1/NORM/SPLY 15CE1 B11 49VU FLIGHT CONTROLS/THS/ACTR/MOT2 19CE2 B09 105VU FLT CTL/ELAC1/STBY SPLY 16CE1 A01 121VU FLIGHT CONTROLS/THS ACTR/MOT3 19CE3 Q17 121VU FLIGHT CONTROLS/THS ACTR/MOT1 19CE1 Q16
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : ALL ∞∞27-40-00∞∞∞∞∞∞∞∞∞∞Page 223
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B. If you find stiffness:
(1) Make sure that there is no water or ice in the lower area of the tail cone.
(a) If you find water or ice, remove it and check that the drain tube is not clogged (Ref. AMM TASK 53-59-00-210-001).
(2) Do a check of the pitch-trim control wheel and cable linkage R (Ref. Fig. 201/TASK 27-40-00-991-001)
(a) Disconnect the shaft (2) from the THS actuator (1) (see detail A).
1 put the pitch-trim control wheel in the zero position.
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2 put the PIN - RIGGING (0U190360) (8) in position on the THS
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actuator (1).
3 disconnect the mechanical system link-plate (7) from the input
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lever (9)
4 move the pitch-trim control wheel and go back to the neutral
_ position. . if you do not find stiffness : see Para. (3) . if you find stiffness : see Para. (b).
(b) disconnect the shaft (4) from the stop and gearset unit (5) (see detail B):
1 install the HOLDING TOOL-TRIM CTL LOWER SHAFT (98D27403000000)
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on the drive shaft (4).
2 install the standard locking bolt (10) on the chain (11).
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3 remove the tapered pin (12).
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4 move the pitch-trim control wheel and go back to the neutral
_ position . if you do not find stiffness : see Para. (d) . if you find stiffness : see Para. (c)
(c) Check of the mechanical part failure of the pitch-trim control mechanism (6) and the stop and gearset unit (5).
1 do this corrective action:
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- replace the pitch-trim control mechanism (6) (Ref. AMM TASK 27-41-41-000-001) and (Ref. AMM TASK 27-41-41-400-001) or
- replace the pitch trim control stop and gearset unit (5) (Ref. AMM TASK 27-41-43-000-001) and (Ref. AMM TASK 27-41-43-400-001).
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : ALL ∞∞27-40-00∞∞∞∞∞∞∞∞∞∞Page 224
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2 connect the shaft (4) to the stop and gearset unit (5)
_ . install the tapered pin (12) . remove the standard locking bolt (10) . remove the trim-control lower shaft holding-tool
3 connect the shaft (2) to the THS actuator (1)
_ . connect the mechanical system link-plate (7) to the input lever (9) . remove the THS-actuator mechanical input lever rigging-pin
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