- replace the SEAT-F/O (4MS) (Ref. AMM TASK 25-11-51-000-001) and (Ref. AMM TASK 25-11-51-400-001).

 (b) If there is no 115VAC:

 - do a check for a ground signal at pin D of the First Officer seat (4MS) (Ref. ASM 25-11/01).
 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 EFF : ALL ∞∞25-11-00∞∞∞∞∞∞∞∞∞∞Page 207
 Feb 01/98 CES 1 If there is no ground signal:

_

 - repair the above wiring.
 2 If there is a ground signal:

_

 - do a check of the wiring between the First Officer seat (4MS) and the circuit breaker (1MS2) (Ref. ASM 25-11/01).
 a If there is no continuity:
_

 - repair the above wiring.
 b If there is continuity:

_ - replace the C/B - COCKPIT SEATS/SEAT CTL/F/O (1MS2).

 (2) If the circuit breaker is open:
 - close it.

 (a) If it trips again:
 - replace the SEAT-F/O (4MS) (Ref. AMM TASK 25-11-51-000-001) and (Ref. AMM TASK 25-11-51-400-001).
 1 If the fault continues:
_

 - do a check for a short to ground at the wiring between the First Officer seat (4MS) and the circuit breaker (1MS2) (Ref. ASM 25-11/01).
 a If there is a short to ground:
_

 - repair the above wiring. b If there is no short to ground:
_ - replace the C/B - COCKPIT SEATS/SEAT CTL/F/O (1MS2).

 B. Do the test given in Para. 3.

 Manual Controls of the Captain Seat Inoperative
 1. Possible Causes
_______________

 - SEAT-CAPTAIN (3MS)
 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 25-11-00-710-001 Operational Test of the Captain and First Officer
 Seats (3MS, 4MS) AMM 25-11-51-000-001 Removal of the Captain/First Officer Seat (3MS, 4MS) AMM 25-11-51-400-001 Installation of the Captain/First Officer Seat (3MS,
 4MS)
 3. Fault Confirmation
__________________
 A. Test

 (1) Do the operational test of the Captain and First Officer seats (3MS, 4MS) (Ref. AMM TASK 25-11-00-710-001).
 NOTE : Do the test for the Captain seat only.
____
 4. Fault Isolation
_______________

 A. If during the operational test:
 (1) The vertical manual control of the Captain seat is inoperative:

 - replace the SEAT-CAPTAIN (3MS) (Ref. AMM TASK 25-11-51-000-001) and (Ref. AMM TASK 25-11-51-400-001).

 (2) The horizontal manual control of the Captain seat is inoperative:

 - replace the SEAT-CAPTAIN (3MS) (Ref. AMM TASK 25-11-51-000-001) and (Ref. AMM TASK 25-11-51-400-001).

 (3) The backrest adjustment of the Captain seat is inoperative:

 - replace the SEAT-CAPTAIN (3MS) (Ref. AMM TASK 25-11-51-000-001) and (Ref. AMM TASK 25-11-51-400-001).

 Manual Controls of the First Officer Seat Inoperative
 1. Possible Causes
_______________
 - SEAT-F/O (4MS)

 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 25-11-00-710-001 Operational Test of the Captain and First Officer
 Seats (3MS, 4MS) AMM 25-11-51-000-001 Removal of the Captain/First Officer Seat (3MS, 4MS) AMM 25-11-51-400-001 Installation of the Captain/First Officer Seat (3MS,
 4MS)
 3. Fault Confirmation
__________________
 A. Test

 (1) Do the operational test of the Captain and First Officer seats (3MS, 4MS) (Ref. AMM TASK 25-11-00-710-001).
 NOTE : Do the First Officer test only.
____
 4. Fault Isolation
_______________

 A. If during the operational test:
 (1) The vertical manual control of the First Officer seat is inoperative:

 - replace the SEAT-F/O (4MS) (Ref. AMM TASK 25-11-51-000-001) and (Ref. AMM TASK 25-11-51-400-001).

 (2) The horizontal manual control of the First Officer seat is inoperative:

 - replace the SEAT-F/O (4MS) (Ref. AMM TASK 25-11-51-000-001) and (Ref. AMM TASK 25-11-51-400-001).

 (3) The backrest adjustment of the First Officer seat is inoperative:

 - replace the SEAT-F/O (4MS) (Ref. AMM TASK 25-11-51-000-001) and (Ref. AMM TASK 25-11-51-400-001).
　
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