# SDR MALA030238

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 16, 2003
- Submitted: April 17, 2003
- Operation: Air carrier
- Aircraft: N438XJ
- Make and model: Saab 340B
- Registry model: [Saab 340B](https://openairdocs.org/model/saab-340b) (OpenAirDocs)
- Aircraft serial: 340B438
- System (JASC): [6120 · Propeller Controlling System](https://openairdocs.org/jasc/6120)
- Part: Transducer
- Condition: Failed
- Location: Pgb Oil
- Stage of operation: CR
- 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/MALA030238

## Discrepancy

DURING FLIGHT 3119, RT PROP OIL PRESSURE FLUCUATED THEN DROPPED TO ZERO INFLIGHT.  TEMPERATURE AND LIGHT OPERATED NORMAL.  RT PROP OIL PRESSURE FLUCTUATION BETWEEN 0-200 PSI OCCASIONALLY STEADY AT 100 PSI IN THE GREEN ARC.  THEN WENT TO PSI AND STAYED.  AIR RETURN TO MSP.  MAINTENANCE REPLACED RT PGB OIL PSI X-DUCER PER SAAB AMM 79-30-5-4 AND REMOVED AND RE-INSTALLED RT OIL FILTER PGB FOR ACCESS.  LEAK AND OPS CHECK GOOD.  ALSO OHMED WIRING AT RT INDICATOR TO X-DUCER CHECK GOOD.

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