for LRU 10CC: (Ref. AMM TASK 27-22-51-000-001) and (Ref. AMM
TASK 27-22-51-400-001) R for electronic module of LRU 10CC: (Ref. AMM TASK 27-22-51-000-R 002) and (Ref. AMM TASK 27-22-51-400-002)
for LRU 3CC1: (Ref. AMM TASK 27-26-51-000-001) and (Ref. AMM
TASK 27-26-51-400-001)
for LRU 2CC: (Ref. AMM TASK 27-26-17-000-001) and (Ref. AMM
TASK 27-26-17-400-001).
(b) If this circuit breaker opens again:
- do a check for a short to ground between the circuit breaker 14CC1 and the four units, (Ref. ASM 22-67/01).
1 If there is a short to ground:
_ - repair the related wiring.
2 If there is no short to ground:
_
- replace the C/B-AUTO FLT/FAC 1/26VAC (14CC1).
(2) Connect all the units.
C. Do the test given in Para. 3.
Loss of Power Supply 26VAC of the Position Feedback Transducers Side 2
1. Possible Causes
_______________
- LIMITATION UNIT-RUDDER TRAVEL (4CC)
- ACTUATOR-RUDDER TRIM (10CC)
- SERVO ACTR-YAW DAMPER, 2 (3CC2)
- XDCR UNIT-YAW DAMPER POS (2CC)
- wiring of the 26VAC signal from the circuit breaker 14CC2 to the first terminal block
- C/B-AUTO FLT/FAC 2/26VAC (14CC2)
- short to ground between the circuit breaker 14CC2 and the four units
2. Job Set-up Information
______________________
A. Referenced Information
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REFERENCE DESIGNATION
-------------------------------------------------------------------------------
AMM 22-91-00-710-001 Ground Scanning of the AFS AMM 27-22-51-000-001 Removal of the Rudder Trim Actuator (10CC) AMM 27-22-51-400-001 Installation of the Rudder Trim Actuator (10CC) AMM 27-23-51-000-001 Removal of the Rudder Travel Limitation Unit 4CC AMM 27-23-51-400-001 Installation of the Rudder Travel Limitation Unit 4CC AMM 27-26-17-000-001 Removal of the Yaw Damper Position Transducer Unit
2CC AMM 27-26-17-400-001 Installation of the Yaw Damper Position Transducer Unit 2CC AMM 27-26-51-000-001 Removal of the Yaw Damper Servo Actuator (3CC1) and (3CC2) AMM 27-26-51-400-001 Installation of the Yaw Damper Servo Actuator (3CC1) and (3CC2) ASM 22-67/01
3. Fault Confirmation
__________________
A. Make sure that this(these) circuit breaker(s) is(are) closed:
-------------------------------------------------------------------------------
PANEL DESIGNATION IDENT. LOCATION
-------------------------------------------------------------------------------
121VU AUTO FLT/FAC2/26VAC 14CC2 M18
B. Test
(1) Do the Ground Scanning of the AFS (Ref. AMM TASK 22-91-00-710-001).
(a) If the circuit breaker 14CC2 is open, refer to Para. 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 ∞∞22-61-00∞∞∞∞∞∞∞∞∞∞Page 220
May 01/98 CES
4. Fault Isolation
_______________
A. If the circuit breaker 14CC2 is closed, and if the test gives the
maintenance message AFS: 231 XPA BUS BAR:
- do a check of the wiring of the 26VAC signal from the circuit breaker 14CC2 to the first terminal block, (Ref. ASM 22-67/01).
(1) If there is no continuity:
- repair the above wiring.
(2) If there is continuity:
- replace the C/B-AUTO FLT/FAC 2/26VAC (14CC2).
B. If the circuit breaker 14CC2 is open:
- close this circuit breaker.
(1) If this circuit breaker opens again:
- disconnect these four units:
LIMITATION UNIT-RUDDER TRAVEL (4CC)
ACTUATOR-RUDDER TRIM (10CC)
SERVO ACTR-YAW DAMPER, 2 (3CC2)
XDCR UNIT-YAW DAMPER POS (2CC)
- close the circuit breaker 14CC2.
(a) If this circuit breaker stays closed:
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本文链接地址：A320 Trouble Shooting Manual 排故手册 AUTO FLIGHT 自动飞行1(92)
