# SDR AALA201904299030

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 26, 2019
- Submitted: April 29, 2019
- Operation: Air carrier
- Aircraft: [N703UW](https://openairdocs.org/aircraft/N703UW), registered now
- Make and model: Airbus A319-112
- Registry model: [Airbus A319-112](https://openairdocs.org/model/airbus-industrie-a319-112) (OpenAirDocs)
- Aircraft serial: 904
- Aircraft time: 54,740 hours, 31,718 cycles
- System (JASC): [3417 · Air Data Computer](https://openairdocs.org/jasc/3417)
- Part: Adc
- Part number: 46502003030316
- Part serial: 3405
- Condition: Failed
- Part time: 57,620 hours, 21,112 cycles
- Stage of operation: CR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: B, A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA201904299030

## Discrepancy

AIRCRAFT WAS GROUNDED: PILOT DECLARED EMERGENCY LANDING ON ACCOUNT OF AIR-DATA COMPUTER FAILURE. PILOT RECIEVED ADR1 FAULT AT CRUISE, PERFORMED ECAM PROCEDURE UNABLE TO RECOVER CA FLT INSTRUMENTS. MAINTENACE REMOVED AND REPLACED THE #1 ADIRU IAW AMM 34-12-34. ACCOMPLISHED LAND CATIII CAPABILITY TEST IAW AMM 22-97-00. ALL CHECKS NORMAL.

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