# SDR AALA20091001SFO03

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 1, 2009
- Submitted: October 6, 2009
- Operation: Air carrier
- Aircraft: [N488AA](https://openairdocs.org/aircraft/N488AA), 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: 49681
- Aircraft time: 61,041 hours, 31,634 cycles
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Regulator Valve
- Part number: 39271411
- Condition: Failed
- Location: Cabin
- Stage of operation: CL
- How discovered: O
- Nature of condition: B
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA20091001SFO03

## Discrepancy

CREW REPORTED SMELL OR ODOR IN CABIN AND COCKPIT AFTER TAKEOFF.  RETURNED TO FAT AND LANDED WITHOUT INCIDENT.  REPLACED LEFT AND RIGHT PRESSURE REGULATING VALVES.  REPLACED BOTH COALESCER BAGS AND LEFT PNEUMATIC PILOT REGULATOR VALVE.

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