3. Fault Confirmation
__________________
 A. Test Do the BITE test of the EFCS (ground scanning) (system 1) (Ref. AMM TASK 27-96-00-740-001).
 4. Fault Isolation
_______________
 A. If the test gives the maintenance message IR3 - BUS 3:
 - replace the ADIRU-3 (1FP3) (Ref. AMM TASK 34-12-34-000-001) and (Ref. AMM TASK 34-12-34-400-001).
 (1) If the fault continues:
 - do a check and repair the wiring of the INERTIAL REFERENCE OUTPUT BUS 3 bus from the ADIRU 3 (1FP3) to the terminal block 1831VT: For pins AB/10C, 11C of the ADIRU3 (Ref. ASM 34-14/01) (Ref. AWM 34-11-39).
 (a) If the fault continues:
 - do the trouble shooting procedure that follows (Ref. TASK 31-32-00-810-934).
 B. Do the test given in Para. 3.
 「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 ∞∞34-14-00∞∞∞∞∞∞∞∞∞∞Page 272
 May 01/05R CES

 Loss of the IR 3 BUS 3 Output Identified by the EFCS 2
 1. Possible Causes
_______________
 - ADIRU-3 (1FP3)

 - wiring of the INERTIAL REFERENCE OUTPUT BUS 3 bus from the ADIRU 3 (1FP3) to the terminal block 1831VT

 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
31-32-00-810-934 Failure of the Digital Links
 AMM 27-96-00-740-001 BITE Test of the EFCS (Ground Scanning)
 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)
 ASM 34-14/01
 AWM 34-11-39

 3. Fault Confirmation
__________________
 A. Test Do the BITE test of the EFCS (ground scanning) (system 2) (Ref. AMM TASK 27-96-00-740-001).
 4. Fault Isolation
_______________
 A. If the test gives the maintenance message IR3 - BUS3:
 - replace the ADIRU-3 (1FP3) (Ref. AMM TASK 34-12-34-000-001) and (Ref. AMM TASK 34-12-34-400-001).
 (1) If the fault continues:
 - do a check and repair the wiring of the INERTIAL REFERENCE OUTPUT BUS 3 bus from the ADIRU 3 (1FP3) to the terminal block 1831VT: For pins AB/10C, 11C of the ADIUR3 (Ref. ASM 34-14/01) (Ref. AWM 34-11-39).
 (a) If the fault continues:
 - do the trouble shooting procedure that follows (Ref. TASK 31-32-00-810-934).
 B. Do the test given in Para. 3.
 「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 ∞∞34-14-00∞∞∞∞∞∞∞∞∞∞Page 273
 May 01/05R CES

 Loss of the IR 3 BUS 3 Output Identified by the CFDS
 1. Possible Causes
_______________
 - ADIRU-3 (1FP3)

 - wiring of the INERTIAL REFERENCE OUTPUT BUS 3 bus from the ADIRU 3 (1FP3) to the first terminal block

 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 31-32-00-869-002 Procedure for Class 3 Faults Reading
 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)
 ASM 34-14/01

 3. Fault Confirmation
__________________
 A. Make sure that this(these) circuit breaker(s) is(are) closed:
 -------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------49VU NAV PROBES/ADIRU 1/AND AOA 1/26VAC 5FP1 F07 49VU NAV PROBES/ADIRU1/115VAC 4FP1 F06 105VU ADIRS/ADIRU1/28VDC 6FP1 C02
 B. Test On the CFDS MENU page, get access to the AVIONICS STATUS page (Ref. AMM TASK 31-32-00-869-002).
 4. Fault Isolation
_______________
 A. If the test gives the maintenance message NO IR3 DATA:
 - replace the ADIRU-3 (1FP3) (Ref. AMM TASK 34-12-34-000-001) and (Ref. AMM TASK 34-12-34-400-001).
 (1) If the fault continues:
 - do a check and repair the wiring of the INERTIAL REFERENCE OUTPUT BUS 3 bus from the ADIRU 3 (1FP3) to the first terminal block (Ref. ASM 34-14/01).
　
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