# SDR AALA2020010219025

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 29, 2019
- Submitted: January 2, 2020
- Operation: Air carrier
- Aircraft: [N554UW](https://openairdocs.org/aircraft/N554UW), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 4966
- Aircraft time: 26,181 hours, 10,498 cycles
- System (JASC): [5210 · Passenger/Crew Doors](https://openairdocs.org/jasc/5210)
- Part: Bottle
- Condition: Low Pressure
- Location: L4 Door
- Stage of operation: IN
- How discovered: O
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA2020010219025

## Discrepancy

AIRCRAFT WAS NOT GROUNDED: DOOR 4L ANNUNCIATED ON FLIGHT ATTENDANT'S PANEL "CHECK DOOR PRESSURE". MAINTENANCE SERVICED DOOR ASSIST BOTTLE AT 4L DOOR TO PROPER PRESSURE PER AMM 52-10-00.

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