# SDR AALA20170524002

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 24, 2017
- Submitted: May 25, 2017
- Operation: Air carrier
- Aircraft: [N131NN](https://openairdocs.org/aircraft/N131NN), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 6472
- Aircraft time: 8,066 hours, 2,479 cycles
- System (JASC): [5210 · Passenger/Crew Doors](https://openairdocs.org/jasc/5210)
- Part: Valve
- Condition: Leaking
- Location: L1 Door Bottle
- 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/AALA20170524002

## Discrepancy

L1 DOOR CYLINDER PRESSURE BELOW LIMITS.  PERFORMED TROUBLSHOOTING IAW TSM 52-11-00-810-827A.  FOUND A LEAK AT FILLING VALVE.  REPLACED FILLING VALVE IAW AMM 52-10-00-610-003A, AND CHARGED DAMPER TO PROPER LIMITS. ACCOMPLISHED SATISFACTORY OPERATIONAL CHECK.

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