# SDR AALA201901289014

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 26, 2019
- Submitted: January 28, 2019
- Operation: Air carrier
- Aircraft: [N9629H](https://openairdocs.org/aircraft/N9629H), registered now
- Make and model: Doug MD 83
- Registry model: [Doug MD 83](https://openairdocs.org/model/mcdonnell-douglas-md-83) (OpenAirDocs)
- Aircraft serial: 53599
- Aircraft time: 55,863 hours, 28,012 cycles
- Engine: Pwa JT8D219
- System (JASC): [7532 · Compressor Bleed Valve](https://openairdocs.org/jasc/7532)
- Part: Bleed Valve
- Condition: Faulty
- Stage of operation: DE
- How discovered: O
- Nature of condition: B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA201901289014

## Discrepancy

DESCENDING THROUGH FL 190, THE FORWARD PORTION OF AIRCRAFT EXPERIENCED A MODERATE BURNING RUBBER ODOR. DISSAPATED QUICKLY.  ALL ELECTRICAL AND AIR CONDITION SYSTEMS WERE NORMAL. THE AIRCRAFT WAS GROUNDED.   ACCOMPLISHED MCM 05-96-70, TYPE 4.  REPLACED THE LT PRSOV IAW AMM 21-31-01.  REPLACED PILOT PRESSURE REGULATOR IAW AMM 21-31-11.

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