# SDR AALA201704229004

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 21, 2017
- Submitted: April 25, 2017
- Operation: Air carrier
- Aircraft: [N121AN](https://openairdocs.org/aircraft/N121AN), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 6238
- Aircraft time: 8,805 hours, 2,860 cycles
- System (JASC): [5210 · Passenger/Crew Doors](https://openairdocs.org/jasc/5210)
- Part: Cylinder
- Condition: Low Pressure
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA201704229004

## Discrepancy

DURING SERVICE CHECK, FOUND LEFT AFT PASSENGER DOOR EMERGENCY OPERATION CYLINDER GAUGE READING ZERO. SERVICED DOOR DAMPER AND EMERGENCY OPERATION CYLINDER IAW AMM 52-10-00.

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