# SDR USAA2012101500006

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 14, 2012
- Submitted: October 15, 2012
- Operation: Air carrier
- Aircraft: [N538UW](https://openairdocs.org/aircraft/N538UW), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 4050
- Aircraft time: 10,377 hours, 3,848 cycles
- System (JASC): [5210 · Passenger/Crew Doors](https://openairdocs.org/jasc/5210)
- Part: Bottle
- Part number: FE277000
- Part serial: FR2037
- Condition: Low Pressure
- Location: L4 Door
- Part time: 10,379 hours, 3,849 cycles
- Stage of operation: NR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/USAA2012101500006

## Discrepancy

CHECK DOOR PRESSURE AT L4.  SERVICED L4 DOOR ASSIST BOTTLE PRESSURE PER AMM 52-00-040-001A.

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