# SDR 2007UALA02475

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 9, 2007
- Submitted: July 13, 2007
- Operation: Air carrier
- Aircraft: [N439UA](https://openairdocs.org/aircraft/N439UA), registered now
- Make and model: Airbus A320-232
- Registry model: [Airbus A320-232](https://openairdocs.org/model/airbus-a320-232) (OpenAirDocs)
- Aircraft serial: 683
- Aircraft time: 35,985 hours, 12,997 cycles
- Engine: Iae V2527A5
- System (JASC): [3440 · Independent Position Determining System](https://openairdocs.org/jasc/3440)
- Part: Display
- Condition: Faulted
- Location: Nr 1
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2007UALA02475

## Discrepancy

ADR 1 FAULT DISPLAYED ON UPPER ECAM SCREEN.  FOUND ADIRU MISALIGNED. CYCLED CB'S C2 AND F6. ALIGNED ADIRU'S AND FAULT LITE EXTINGUISHED. PERFORMED BITE CK OF ADR1 AND NO FAULTS NOTED.

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