2. Job Set-up Information______________________
A. Referenced Information
-------------------------------------------------------------------------------
REFERENCE DESIGNATION
-------------------------------------------------------------------------------
AMM 34-42-00-740-002 BITE Test of the Radio Altimeter
AMM 34-42-11-000-001 Removal of the Radio Altimeter Antennas 5SA1, 5SA2, 6SA1, 6SA2
AMM 34-42-11-400-001 Installation of the Radio Altimeter Antennas 5SA1, 5SA2, 6SA1, 6SA2
AMM 34-42-33-000-001 Removal of the Radio Altimeter Transceiver 2SA1 and 2SA2
AMM 34-42-33-400-001 Installation of the Radio Altimeter Transceiver 2SA1 and 2SA2
ASM 34-42/02
3. Fault Confirmation__________________
**ON A/C 001-004,
Post SB 34-1171 For A/C 001-004,
A. Test
(1) Do the BITE test of the radio altimeter (system 2) (Ref. AMM TASK 34-42-00-740-002).
4. Fault Isolation
_______________
**ON A/C 001-004,
Post SB 34-1171 For A/C 001-004,
A. If the test gives the maintenance message RA2 ANTENNA (5SA2):
- remove the ANTENNA-RA RCPTN, 2 (5SA2) (Ref. AMM TASK 34-42-11-000-001)
- remove the XCVR-RA, 2 (2SA2) (Ref. AMM TASK 34-42-33-000-001)
- do a check of the wiring between the RA transceiver 2 (2SA2) and the RA reception antenna 2 (5SA2) (Ref. ASM 34-42/02).
(1) If there is continuity:
- install a new RA reception antenna 2 (5SA2) (Ref. AMM TASK 34-42-11-400-001).
- install the RA transceiver 2 (2SA2) (Ref. AMM TASK 34-42-33-400-001).
(2) If there is no continuity:
- repair the wiring between the RA transceiver 2 (2SA2) and the RA reception antenna 2 (5SA2)>: pin AA/C of the RA transceiver 2 (2SA2) (Ref. ASM 34-42/02)
- install the RA transceiver 2 (2SA2) and the RA reception antenna 2 (5SA2).
(a) If the fault continues:
- replace the XCVR-RA, 2 (2SA2) (Ref. AMM TASK 34-42-33-000-001) (Ref. AMM TASK 34-42-33-400-001).
B. Do the test given in para. 3.
TASK 34-42-00-810-836
Failure of the RA Transmission Antenna 2
1. Possible Causes_______________
- ANTENNA-RA XMSN, 2 (6SA2)
- XCVR-RA, 2 (2SA2)
- wiring between the RA transceiver 2 (2SA2) and the RA transmission antenna 2 (6SA2)
2. Job Set-up Information______________________
A. Referenced Information
-------------------------------------------------------------------------------
REFERENCE DESIGNATION
-------------------------------------------------------------------------------
AMM 34-42-00-740-002 BITE Test of the Radio Altimeter
AMM 34-42-11-000-001 Removal of the Radio Altimeter Antennas 5SA1, 5SA2, 6SA1, 6SA2
AMM 34-42-11-400-001 Installation of the Radio Altimeter Antennas 5SA1, 5SA2, 6SA1, 6SA2
AMM 34-42-33-000-001 Removal of the Radio Altimeter Transceiver 2SA1 and 2SA2
AMM 34-42-33-400-001 Installation of the Radio Altimeter Transceiver 2SA1 and 2SA2
ASM 34-42/02
3. Fault Confirmation__________________
**ON A/C 001-004,
Post SB 34-1171 For A/C 001-004,
A. Test
(1) Do the BITE test of the radio altimeter (system 2) (Ref. AMM TASK 34-42-00-740-002).
4. Fault Isolation
_______________
**ON A/C 001-004,
Post SB 34-1171 For A/C 001-004,
A. If the test gives the maintenance message RA2 ANTENNA (6SA2):
- remove the ANTENNA-RA XMSN, 2 (6SA2) (Ref. AMM TASK 34-42-11-000-001)
- remove the XCVR-RA, 2 (2SA2) (Ref. AMM TASK 34-42-33-000-001)
- do a check of the wiring between the RA transceiver 2 (2SA2) and the RA transmission antenna 2 (6SA2) (Ref. ASM 34-42/02)
(1) If there is continuity:
- install a new RA transmission antenna 2 (6SA2) (Ref. AMM TASK 34-42-11-400-001)
- install the RA transceiver 2 (2SA2) (Ref. AMM TASK 34-42-33-400-001).
(2) If there is no continuity:
- repair the wiring between the RA transceiver 2 (2SA2) and the RA transmission antenna 2 (6SA2): pin AB/C of the RA tranceiver 2 (2SA2) (Ref. ASM 34-42/02).
- install the RA transceiver 2 (2SA2) and the RA transmission antenna 2 (6SA2).
(a) If the fault continues:
- replace the XCVR-RA, 2 (2SA2) (Ref. AMM TASK 34-42-33-000-001) (Ref. AMM TASK 34-42-33-400-001).
B. Do the test given in para. 3.
R **ON A/C ALL
TASK 34-42-00-810-837
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本文链接地址：A320 Trouble Shooting Manual 排故手册 导航 NAVIGATION 3(47)
