1. Possible Causes
_______________
- XCVR-RA, 1 (2SA1)
- wiring of the ALTITUDE BUS 1 from the RA transceiver 1 (2SA1) to the first terminal block
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------
REFERENCE DESIGNATION
-------------------------------------------------------------------------------
AMM 22-91-00-710-001 Ground Scanning of the AFS 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 34-42/01
3. Fault Confirmation
__________________
A. Make sure that this(these) circuit breaker(s) is(are) closed:
-------------------------------------------------------------------------------
PANEL DESIGNATION IDENT. LOCATION
-------------------------------------------------------------------------------
121VU COM NAV/RAD ALTM/1 1SA1 K11
B. Test
(1) Do the operational test of the ground scanning (Ref. AMM TASK 22-91-00-710-001).
4. Fault Isolation
_______________
A. If the test gives the maintenance message AFS : R/A1:
- replace the XCVR-RA, 1 (2SA1) (Ref. AMM TASK 34-42-33-000-001) and (Ref. AMM TASK 34-42-33-400-001).
(1) If the fault continues:
- do a check and repair the wiring of the ALTITUDE BUS 1 from the RA transceiver 1 (2SA1) to the first terminal block (Ref. ASM 34-42/01).
B. Do the test given in Para. 3.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 ∞∞34-42-00∞∞∞∞∞∞∞∞∞∞Page 208
Feb 01/98 CES Loss of the Altitude Bus 1 of the RA Transceiver 2 Identified by the EFCS1 or the EFCS2
1. Possible Causes
_______________
- XCVR-RA, 2 (2SA2)
- wiring of the ALTITUDE BUS 1 from the RA transceiver 2 (2SA2) to the first terminal block
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
R AMM 27-96-00-740-001 BITE Test of the EFCS (Ground Scanning) 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
__________________
A. Make sure that this(these) circuit breaker(s) is(are) closed:
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------
121VU COM NAV/RAD ALTM/2 1SA2 K12
B. Test
(1) Do the BITE test of the EFCS (ground scanning) (Ref. AMM TASK 27-96-00-740-001).
4. Fault Isolation
_______________
A. If the test gives the maintenance message RA2:
- replace the XCVR-RA, 2 (2SA2) (Ref. AMM TASK 34-42-33-000-001) and (Ref. AMM TASK 34-42-33-400-001).
(1) If the fault continues:
- do a check and repair the wiring of the ALTITUDE BUS 1 from the RA transceiver 2 (2SA2) to the first terminal block (Ref. ASM 34-42/02).
B. Do the test given in Para. 3.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 ∞∞34-42-00∞∞∞∞∞∞∞∞∞∞Page 209
Aug 01/99 CES Loss of the Altitude Bus 1 of the RA Transceiver 2 Identified by the AFS
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