# SDR AALA202107011877

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 30, 2021
- Submitted: July 1, 2021
- Operation: Air carrier
- Aircraft: [N139AN](https://openairdocs.org/aircraft/N139AN), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 6687
- Aircraft time: 17,675 hours, 6,712 cycles
- Engine: Iae V2533A5
- System (JASC): [7120 · Engine Mount Section](https://openairdocs.org/jasc/7120)
- Part: Bolt
- Condition: Failed
- Location: Lt Eng Mount
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202107011877

## Discrepancy

AIRCRAFT IN BASE MAINTENANCE: LEFT ENGINE FORWARD MOUNT BOLTS TORQUE CHECK FAILED. REPLACED 5 MOUNT BOLTS PER AMM 71-21-12-400-010-A.

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