# SDR AALA202211166964

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 12, 2022
- Submitted: November 16, 2022
- Operation: Air carrier
- Aircraft: [N705UW](https://openairdocs.org/aircraft/N705UW), registered now
- Make and model: Airbus A319-112
- Registry model: [Airbus A319-112](https://openairdocs.org/model/airbus-industrie-a319-112) (OpenAirDocs)
- Aircraft serial: 929
- Aircraft time: 63,030 hours, 36,674 cycles
- System (JASC): [3400 · Navigation System](https://openairdocs.org/jasc/3400)
- Part: Adiru
- Part number: 46502003030316
- Part serial: 2234
- Condition: Defective
- Location: Zone 100
- Part time: 66,482 hours, 31,087 cycles
- Stage of operation: CR
- How discovered: O
- Nature of condition: G
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202211166964

## Discrepancy

AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED AND THE AIRCRAFT DIVERTED TO MID DUE TO #1 ADR FAULT, NO FAULT LIGHTS AUTO PILOT / AUTO THROTTLE LOST, CAPTAINS INSTRUMENTS LOST. AIR DATA SWITCH TO CAPTAINS DID NOT BRING BACK CAPTAINS INSTRUMENTS. ALSO #3 IRS / GPS OFF 22 MILES THEN BLANK, CHECK IRS 03/FM POSITION. THE AIRCRAFT LANDED SAFELY AT MID. MAINTENANCE REPLACED THE #1 (AALA202211166964) AND #3 (AALA202211164644) ADIRU PER AMM 34-12-34. A SATISFACTORY OPERATIONAL CHECK WAS ACCOMPLISHED.

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