# SDR 95ZZZM304

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 26, 1995
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N138AW
- Make and model: Boeing 737-2E3
- Registry model: [Boeing 737-2E3](https://openairdocs.org/model/boeing-737-2e3) (OpenAirDocs)
- Aircraft serial: 22792
- System (JASC): [2133 · Pressure Regulator/Outflow Valve](https://openairdocs.org/jasc/2133)
- Part: Outflow Vlv
- Part number: 322684003
- Condition: Malfunctioned
- Location: Cabin
- Stage of operation: CL
- Nature of condition: O
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/95ZZZM304

## Discrepancy

PHX-LAX - FLT 15 - ON CLIMB-OUT AIRCRAFT LOST RT PACK, CREW WAS UNABLE TO PRESSURIZE CABIN.  LEFT PACK WAS ON MEL.  AIRCRAFT RETURNED TO PHX WITHOUT FURTHER PROBLEMS.  MAINTENANCE REPLACED FWD OUTFLOW VALVE AND E/E COOLING EXHAUST VALVE PER MM 21-58-31, PAGE 401.  PRESSURIZED AND TESTED PER MM 5-51-91, CHECK 5.  AIRCRAFT RETURNED TO SERVICE.

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