# SDR AALA202406273374

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 25, 2024
- Submitted: June 27, 2024
- Operation: Air carrier
- Aircraft: [N164NN](https://openairdocs.org/aircraft/N164NN), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 6909
- Aircraft time: 24,573 hours, 9,633 cycles
- System (JASC): [5250 · Fixed Inner Doors](https://openairdocs.org/jasc/5250)
- Part: Lock
- Part number: UNKNOWN
- Condition: Inoperative
- Location: Cockpit Door
- Stage of operation: NR
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202406273374

## Discrepancy

AIRCRAFT WAS GROUNDED: UNABLE TO OPEN FLIGHT DECK DOOR. REPLACED COCKPIT DOOR LOCKING MECHANISM PER AMM 52-51-21.

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