AMM 27-44-51-400-001
AMM 27-44-57-000-001
AMM 27-44-57-400-001
AMM 27-96-00-710-022
R R R AMM 27-96-00-740-001 AMM 53-59-00-210-001 27-40-00-991-001
3. Fault Confirmation__________________
R A. Not Applicable
4. Fault Isolation_______________
Installation of the Trimmable Horizontal Stabilizer (THS) Actuator (9CE)Removal of the Pitch Trim Actuator from the THS Actuator 9CEInstallation of the Pitch Trim Actuator to the THS Actuator 9CEOperational Test of the THS Actuator Electrical Control (Activation for BITE Test)BITE Test of the EFCS (Ground Scanning) Operational Check of Single Drain Pipe Aft of FR70 from Outside Fig. 201
R A. Inspection of the upper and lower attachments of the THS actuator:
R (1) Do an inspection of the integrity of the load path (primary and R secondary) at the lower attachment of the THS actuator (Ref. ISB 27-R 1164):
R (a) If the result of the inspection is not satisfactory:
- replace the ACTUATOR-THS (9CE), (Ref. AMM TASK 27-44-51-000-001) and (Ref. AMM TASK 27-44-51-400-001).
R (b) If the result of the inspection is satisfactory:
R 1_ Do the operational test of the THS actuator electrical controlR (Ref. AMM TASK 27-96-00-710-022).
R NOTE : Keep the Green and the Yellow hydraulic systems
____ R pressurized.
R 2_ Do the BITE test of the EFCS (ground scanning) (Ref. AMM TASKR 27-96-00-740-001).
R NOTE : Keep the Green and the Yellow hydraulic systems
____ R pressurized.
R a_ If the BITE test gives the maintenance messages:R THS ACTR POS ERROR 9CE OF ELAC2 R THS ACTR POS ERROR 9CE OF ELAC1 R THS ACTR POS ERROR 9CE OF SEC2 R - do the step 4.B.
「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 216
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R b_ If the BITE test does not give maintenance messages:
R - no maintenance action is necessary.
R B. Do a functional test of the THS actuator overtravel related to the
R mechanical indicator (Ref. AMM TASK 27-41-00-720-001):
R NOTE : Keep the Green and the Yellow hydraulic systems pressurized.____
R (1) If you do not find stiffness:
R - depressurized the Green and the Yellow hydraulic systems and do the
R step 4.C.
R (2) If you find stiffness:
R (a) Make sure that there is no water or ice in the lower area of the
R tail cone.
R 1_ If you find water or ice, remove it and make sure that the
R drain tube is not clogged (Ref. AMM TASK 53-59-00-210-001).
R (b) Disconnect the shaft (2) from the THS actuator (1) (see detail
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