R (1) If the yaw damper function is not correct:
R - replace the FAC-2 (1CC2), (Ref. AMM TASK 22-66-34-000-002) and
R (Ref. AMM TASK 22-66-34-400-002).
R (2) If the fault continues:
R - do a check and repair the wiring of the solenoid valve 1 and 2 of
R the SERVO ACTR-YAW DAMPER, 2 (3CC2) (Ref. ASM 22-68/04),
R - if the wiring is correct, replace the solenoid valve 1 and/or 2 of
R the SERVO ACTR-YAW DAMPER, 2 (3CC2), (Ref. AMM TASK 27-26-51-000-R 003) and (Ref. AMM TASK 27-26-51-400-003).
R (3) If the fault continues:
R - do a check and repair the wiring of the pressure switch of the
R SERVO ACTR-YAW DAMPER, 2 (3CC2) (Ref. ASM 22-68/04),
R - if the the wiring is correct, replace the pressure switch of the
R SERVO ACTR-YAW DAMPER, 2 (3CC2), (Ref. AMM TASK 27-26-51-000-004)
R and (Ref. AMM TASK 27-26-51-400-004).
「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 ∞∞22-63-00∞∞∞∞∞∞∞∞∞∞Page 207
May 01/03 CES
R (4) If the fault continues:
R - do a check and repair the wiring of the YAW V1 COM and YAW V2 COM
discretes (from the yaw damper servo-actuator,2 (3CC2) to the FAC 2
R (1CC2)) (Ref. ASM 22-68/04),
R - if the wiring is correct, do a check and repair the wiring of the
R servovalve of the SERVO ACTR-YAW DAMPER, 2 (3CC2) (Ref. ASM 22-
68/04),
R - if the wiring is correct, replace the servovalve of the SERVO
R ACTR-YAW DAMPER, 2 (3CC2), (Ref. AMM TASK 27-26-51-000-002) and
R (Ref. AMM TASK 27-26-51-400-002),
R - if the fault persists, replace the SERVO ACTR-YAW DAMPER, 2
R (3CC2), (Ref. AMM TASK 27-26-51-000-001) and (Ref. AMM TASK 27-26-
51-400-001).
R C. Do the test given in Para. 3.C.
Loss of the Reception of the YD ENGD Feedback Discrete by the FAC 1
1. Possible Causes
_______________
- FAC-1 (1CC1)
- wiring of the YAW ENGD COM and YAW ENGD MON discretes (from the FAC 1 (1CC1) to the first terminal block)
- wiring of the YAW OWN ENGD COM and YAW OWN ENGD MON discretes (from the FAC 1 (1CC1) to the first terminal block)
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 22-60-00-710-002 Operational Test of the Automatic Change-Over
Function
AMM 22-66-34-000-002 Removal of the FAC (1CC1,1CC2)
AMM 22-66-34-400-002 Installation of the FAC (1CC1,1CC2)
AMM 22-96-00-710-001 Operational Test of the AFS
ASM 22-68/04
3. Fault Confirmation
__________________
A. Test
(1) Do the operational test of the AFS (Ref. AMM TASK 22-96-00-710-001) and read the result for the FAC 1.
(2) Do the operational test of the automatic change-over function (Ref. AMM TASK 22-60-00-710-002).
4. Fault Isolation
_______________
A. If the operational test of the AFS gives the maintenance message AFS: FAC1/YD ENGD FDBK:
(1) If the operational test of the automatic change-over function gives the maintenance message AFS: FAC2/YD ENGD CHG-OV:
- replace the FAC-1 (1CC1), (Ref. AMM TASK 22-66-34-000-002) and (Ref. AMM TASK 22-66-34-400-002).
(a) If the fault continues:
- do a check and repair the wiring of the YAW ENGD COM and YAW ENGD MON discretes (from the FAC 1 (1CC1) to the first terminal block), (Ref. ASM 22-68/04).
「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 ∞∞22-63-00∞∞∞∞∞∞∞∞∞∞Page 209
Feb 01/03R CES
(2) If the operational test of the automatic change-over function does not give the maintenance message AFS: FAC2/YD ENGD CHG-OV:
- replace the FAC 1 (1CC1) (Ref. AMM TASK 22-66-34-000-002) and (Ref. AMM TASK 22-66-34-400-002).
(a) If the fault continues:
- do a check and repair the wiring of the YAW OWN ENGD COM and YAW OWN ENGD MON discretes (from the FAC 1 (1CC1) to the first terminal block), (Ref. ASM 22-68/04).
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