- do a check of the wiring of ATH OWN ENGD MON OPP and ATH OWN ENGD COM OPP discretes (on the FMGC 1 (1CA1)) (from pin AD/14F to pin AE/1D and from pin AA/14D to pin AB/1D) (Ref. ASM 22-31/01).
R
「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 ∞∞22-31-00∞∞∞∞∞∞∞∞∞∞Page 201
Feb 01/04 CESR (2) If the fault continues, do the trouble shooting procedure (Ref. TASK R 22-31-00-810-812).
B. Do the test given in Para. 3.
Loss of the ATH 2 ENGD Feedback
1. Possible Causes
_______________
- FMGC-2 (1CA2)
- wiring of the ATH OWN ENGD MON OWN and ATH OWN ENGD COM OWN discretes (on the FMGC 2 (1CA2))
- wiring of ATH OWN ENGD MON OPP and ATH OWN ENGD COM OPP discretes (on the FMGC 2 (1CA2))
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
R R 22-31-00-810-812 AMM 22-83-34-000-001 AMM 22-83-34-400-001 AMM 22-96-00-710-001 ASM 22-31/01 Unwanted A/THR 1 and 2 Inoperative WarningRemoval of the FMGC (1CA1,1CA2)Installation of the FMGC (1CA1,1CA2)Operational Test of the AFS
3. Fault Confirmation__________________
A. Test
(1) On the FCU, push the A/THR pushbutton switch.
(2) Do the operational test of the AFS (Ref. AMM TASK 22-96-00-710-001) and read the result for the FMGC 2.
4. Fault Isolation
_______________
A. If the test gives the maintenance message AFS: FMGC2/ATHR ENGD FDBK:
- replace the FMGC-2 (1CA2) (Ref. AMM TASK 22-83-34-000-001) and (Ref. AMM TASK 22-83-34-400-001).
(1) If the fault continues:
- do a check of the wiring of the ATH OWN ENGD MON OWN and ATH OWN ENGD COM OWN discretes (on the FMGC 2 (1CA2)) (from pin AE/12E to pin AE/1F and from pin AB/12D to pin AB/1F) (Ref. ASM 22-31/01).
- do a check and repair the wiring of ATH OWN ENGD MON OPP and ATH OWN ENGD COM OPP discretes (on the FMGC 2 (1CA2)) (from pin AD/14F to pin AE/1D and from pin AA/14D to pin AB/1D) (Ref. ASM 22-31/01).
R
「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 ∞∞22-31-00∞∞∞∞∞∞∞∞∞∞Page 203
Feb 01/04 CESR (2) If the fault continues, do the trouble shooting procedure (Ref. TASK R 22-31-00-810-812).
B. Do the test given in Para. 3.
A/THR Engagement Inoperative after Installation of the New FMGC
1. Possible Causes
_______________
- FCU (2CA)
- wiring of the ATH INST DISC NO and ATH INST DISC NC discretes (from the FMGC 1 (1CA1) to the two relays (5CA1 and 5CA2))
- wiring of the ATH OWN ENGD COM OPP discrete on the FMGC 1 (1CA1)
- wiring of the ATH OWN ENGD COM OWN discrete on the FMGC 1 (1CA1)
- wiring of the A/THR 1 SW COM discrete from the FCU (2CA) to the FMGC 1 (1CA1)
- wiring of the ATH OWN ENGD MON OPP discrete on the FMGC 1 (1CA1)
- wiring of the ATH OWN ENGD MON OWN discrete on the FMGC 1 (1CA1)
- wiring of the A/THR 1 SW MON discrete from the FCU (2CA) to the FMGC 1 (1CA1)
- wiring of the ATH INST DISC NO and ATH INST DISC NC discretes (from the FMGC 2 (1CA2) to the first terminal block)
- wiring of the ATH OWN ENGD COM OPP discrete on the FMGC 2 (1CA2)
- wiring of the ATH OWN ENGD COM OWN discrete on the FMGC 2 (1CA2)
- wiring of the A/THR 2 SW COM discrete from the FCU (2CA) to the FMGC 2 (1CA2)
- wiring of the ATH OWN ENGD MON OPP discrete on the FMGC 2 (1CA2)
- wiring of the ATH OWN ENGD MON OWN discrete on the FMGC 2 (1CA2)
- wiring of the A/THR 2 SW MON discrete from the FCU (2CA) to the FMGC 2 (1CA2)
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 22-30-00-710-003 Operational Test of the Engine / Autothrust System
Isolation (with AIDS)
AMM 22-81-12-000-001 Removal of the FCU (2CA)
AMM 22-81-12-400-001 Installation of the FCU (2CA)
AMM 22-96-00-710-001 Operational Test of the AFS
AMM 24-41-00-861-002 Energize the Aircraft Electrical Circuits from the
External Power AMM 24-41-00-862-002 De-energize the Aircraft Electrical Circuits Supplied from the External Power ASM 22-31/01 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：A320 Trouble Shooting Manual 排故手册 AUTO FLIGHT 自动飞行1(77)
