# SDR AALA201809289009

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 27, 2018
- Submitted: September 28, 2018
- Operation: Air carrier
- Aircraft: [N919US](https://openairdocs.org/aircraft/N919US), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 6479
- Aircraft time: 12,889 hours, 4,997 cycles
- System (JASC): [2560 · Emergency Equipment](https://openairdocs.org/jasc/2560)
- Part: Bottle
- Condition: Low Pressure
- Location: L4 Door Assist
- Stage of operation: NR
- How discovered: 9
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA201809289009

## Discrepancy

L4 DOOR INDICATES LOW PRESSURE.  SERVICED THE DOOR ASSIST BOTLE IAW AMM 52-10-00-614-001A, NO LEAKS NOTED.

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