R **ON A/C 051-099, 106-149, 204-299, 301-399, 401-499,
TASK 34-11-00-810-889
Air Data Portion of the ADIRU1 Unserviceable
1. Possible Causes
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- ADIRU-1 (1FP1)
- ADM-L TOTAL PRESSURE (19FP1)
- ADM-R STATIC PRESSURE (19FP4)
- ADM-L STATIC PRESSURE (19FP5)
- wiring between the ADIRU1 and the connector receptacle of the L total pressure ADM (19FP1)
- wiring between the connector receptacle of the R static pressure ADM (19FP4) and the first terminal block
- wiring between the connector receptacle of the L static pressure ADM (19FP5) and the first terminal block
2. Job Set-up Information
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A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 34-11-17-000-001 Removal of the Air Data Module (19FP1,19FP2,19FP3,19FP4,19FP5,19FP6, 19FP7,19FP8) AMM 34-11-17-400-001 Installation of the Air Data Module
(19FP1,19FP2,19FP3,19FP4,19FP5,19FP6, 19FP7,19FP8) AMM 34-12-34-000-001 Removal of the ADIRU (1FP1, 1FP2, 1FP3) AMM 34-12-34-400-001 Installation of the ADIRU (1FP1, 1FP2, 1FP3) AMM 34-14-00-740-001 Interface Test of the IR ASM 34-13/03
3. Fault Confirmation
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A. Do the interface test of the IR (system 1) (Ref. AMM TASK 34-14-00-740-001).
4. Fault Isolation
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A. If the test gives the maintenance message ADIRU1 (1FP1) ADR BUS 1:
- swap the ADIRU-1 (1FP1) and the ADIRU2 (Ref. AMM TASK 34-12-34-000-001) and (Ref. AMM TASK 34-12-34-400-001).
(1) If the fault stops:
- replace the ADIRU that you installed on side 2.
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1R EFF : 051-099, 106-149, 204-299, 301-399, ∞∞34-11-00∞∞∞∞∞∞∞∞∞∞Page A245
401-499, Aug 01/05 CES (2) If the fault continues:
- get access to the ADM-L TOTAL PRESSURE (19FP1), ADM-R STATIC PRESSURE (19FP4) and ADM-L STATIC PRESSURE (19FP5) (Ref. AMM TASK 34-11-17-000-001) (Para. 2.A.)
- disconnect the electrical connector of the L total pressure ADM (19FP1) and make sure that there is +13.5V between pins A/C, A and -13.5V between pins A/C, E of the connector receptacle (Ref. ASM 34-13/03).
(a) If the voltages are not OK:
- do a check and repair the wiring between the ADIRU1 and the connector receptacle of the L total pressure ADM (19FP1): for pins AA/6G, 6H and 6J of the ADIRU1 and pins A/A, C and E of the connector receptacle
- connect the electrical connector of the L total pressure ADM (19FP1).
(b) If the voltages are OK:
- disconnect the electrical connector of the R static pressure ADM (19FP4) and make sure that there is +13.5V between pins A/C, A and -13.5V between pins A/C, E of the connector receptacle (Ref. ASM 34-13/03).
1 If the voltages are not OK:
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- do a check and repair the wiring between the connector receptacle of the R static pressure ADM (19FP4) and the first terminal block: for pins A/A, C and E of the connector receptacle
- connect the electrical connectors of the L total pressure ADM (19FP1) and the R static pressure ADM (19FP4).
2 If the voltages are OK:
_
- disconnect the electrical connector of the L static pressure ADM (19FP5) and make sure that there is +13.5V between pins A/C, A and -13.5V between pins A/C, E of the connector receptacle (Ref. ASM 34-13/03).
a If the voltages are not OK:
_
- do a check and repair the wiring between the connector receptacle of the L static pressure ADM (19FP5) and the first terminal block: for pins A/A, C and E of the connector receptacle
- connect the electrical connectors of the L total pressure ADM (19FP1) and the R static pressure ADM (19FP4) and the L static pressure ADM (19FP5).
b If the voltages are OK and if the fault continues:
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- replace the ADM-L TOTAL PRESSURE (19FP1) (Ref. AMM TASK 34-11-17-000-001) and (Ref. AMM TASK 34-11-17-400-001). . If the fault continues: replace the ADM-R STATIC PRESSURE (19FP4).
* If the fault continues:
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1R EFF : 051-099, 106-149, 204-299, 301-399, ∞∞34-11-00∞∞∞∞∞∞∞∞∞∞Page A246
401-499, Aug 01/05 CES B. Do the test given in Para. 3.
