# SDR AALA200800899

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 10, 2008
- Submitted: May 9, 2008
- Operation: Air carrier
- Aircraft: [N586AA](https://openairdocs.org/aircraft/N586AA), registered now
- Make and model: Doug DC-9-82
- Registry model: [Doug DC-9-82](https://openairdocs.org/model/mcdonnell-douglas-dc-9-82) (OpenAirDocs)
- Aircraft serial: 53249
- Aircraft time: 49,092 hours
- System (JASC): [2133 · Pressure Regulator/Outflow Valve](https://openairdocs.org/jasc/2133)
- Part: Outflow Valve
- Condition: Inoperative
- Location: Cabin Pressure
- Stage of operation: CL
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA200800899

## Discrepancy

DFW - INFLIGHT T468/10APR - CREW REPORTED UNABLE TO CONTROL CABIN PRESSURE.  RETURNED TO DFW AND LANDED WITHOUT INCIDENT.  FOUND OUTFLOW VALVE UNABLE TO CLOSE.  REPLACED OUTFLOW VALVE.  SYSTEM GROUND CHECKED NORMAL OPERATION.

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