# SDR AALA202305015776

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 27, 2023
- Submitted: May 1, 2023
- Operation: Air carrier
- Aircraft: [N757UW](https://openairdocs.org/aircraft/N757UW), registered now
- Make and model: Airbus A319-112
- Registry model: [Airbus A319-112](https://openairdocs.org/model/airbus-industrie-a319-112) (OpenAirDocs)
- Aircraft serial: 1342
- Aircraft time: 54,593 hours, 37,103 cycles
- System (JASC): [2700 · Flight Control System](https://openairdocs.org/jasc/2700)
- Part: Adiru
- Part number: 46502003030316
- Part serial: 2530
- Condition: Fault Message
- Location: Zone 100 - Fuse
- Part time: 70,109 hours, 31,172 cycles
- Stage of operation: DE
- How discovered: V
- Nature of condition: J, F
- Precautionary procedure: A, O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202305015776

## Discrepancy

AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED AND THE AIRCRAFT DIVERTED TO IAD. DESCENDING THROUGH FL230, THE FLIGHT CREW REPORTED AUTOPILOT 1 FAULT MESSAGE AND A ALTERNATE LAW MESSAGE ALONG WITH THE FLAPS BEING STUCK BETWEEN ZERO AND ONE.  THE DECISION WAS MADE TO DIVERT TO IAD IN ORDER TO HAVE A LONGER RUNWAY, THE AIRCRAFT LANDED SAFELY AT IAD WITHOUT FURTHER INCIDENT.  MAINTENANCE REPLACED THE # 1 SLAT AND FLAP CONTROL COMPUTER  PER AMM 27-51-34. (AALA202305012838) AND REPLACED THE #2 AIR DATA AND INERTIA REFERENCE UNIT (ADIRU) PER AMM 34-12-34. (AALA202305015776) A SATISFACTORY OPERATIONAL CHECK WAS ACCOMPLISHED.

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