# SDR AALA202509114608

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 2, 2025
- Submitted: September 11, 2025
- Operation: Air carrier
- Aircraft: [N927UW](https://openairdocs.org/aircraft/N927UW), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 6625
- Aircraft time: 33,571 hours, 13,623 cycles
- System (JASC): [5240 · Service Doors](https://openairdocs.org/jasc/5240)
- Part: Bottle
- Part number: FE240007
- Part serial: RFM11812
- Condition: Leaking
- Location: Zone 800
- Part time: 33,617 hours, 13,645 cycles
- Stage of operation: IN
- How discovered: V
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202509114608

## Discrepancy

AIRCRAFT WAS NOT GROUNDED: CABIN DOOR 4R EXHIBITING REPEAT MESSAGES FOR LOW DOOR ASSIST BOTTLE PRESSURE.  MAINTENANCE REPLACED THE DOOR DAMPER AND EMERGENCY OPERATION CYLINDER PER AMM 52-11-14. A SATISFACTORY OPERATIONAL CHECK WAS ACCOMPLISHED.

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