W DOC AIRBUS | TSM A320F

Failure of the ADR3 AOA Average-Unique Pin-Programming


TASK 34-13-00-810-986-A
Failure of the ADR3 AOA Average-Unique Pin-Programming


1. Possible Causes
  • ADIRU-3 [1FP3]
  • wiring of the AOA average-unique pin-programming of ADIRU3
2. Job Set-up Information
 A. Referenced Information
REFERENCE
DESIGNATION
ASM 341203
AMM 34-12-34-000-001
Removal of the ADIRU
AMM 34-12-34-400-001
Installation of the ADIRU
AMM 34-13-00-740-002
INTERFACE TEST of the ADR
3. Fault Confirmation
Subtask 34-13-00-740-333-A ** ON A/C NOT FOR ALL
A. Test
Do the Interface test of the ADR (system 3) AMM 34-13-00-740-002.
4. Fault Isolation
Subtask 34-13-00-810-235-A ** ON A/C NOT FOR ALL
A. If the test gives the maintenance message WRG:AOA AVERAGE-UNIQUE PIN PROG:
  • Remove ADIRU3 AMM 34-12-34-000-001.
  • Do a check of pin AA/5K on the rack connector
  • Compare the status of the pin with the AOA average-unique pin-programming given in ASM 341203.
   (1) If the pin programming is correct:
   (2) If the pin programming is incorrect:
  • Repair the wiring of the AOA average-unique pin-programming of ADIRU3 : pin AA/5K.
  • Install ADIRU3 AMM 34-12-34-400-001.
Subtask 34-13-00-740-334-A ** ON A/C NOT FOR ALL
B. Do the test given in Para. 3.
[Rev.8 from Aug 2018] 2026.04.04 04:32:32 UTC