# SDR MALA010508

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 31, 2001
- Submitted: June 4, 2001
- Operation: Air carrier
- Aircraft: N438XJ
- Make and model: Saab 340B
- Registry model: [Saab 340B](https://openairdocs.org/model/saab-340b) (OpenAirDocs)
- Aircraft serial: 438
- System (JASC): [6120 · Propeller Controlling System](https://openairdocs.org/jasc/6120)
- Part: Control Unit
- Condition: Fluctuates
- Location: Lt Prop
- 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/MALA010508

## Discrepancy

DURING FLIGHT 3200 OUT OF DTW, LT PROP RPM FLUCTUATES AFTER T/O.  LT PROP CYCLED 20-30 RPM WITH SYNC ON, TURNED PROP SYNC OFF, NO HELP.  MOVE CONDITION LEVER, NO HELP.  LT PROP OIL PSI=100 PSI AND OIL TEMP WAS IN GREEN ARC.  AIR RETURN TO DTW.  MAINTENANCE RAN LT ENGINE AT VARIOUS POWER SETTINGS NO FLUCTUATION LT PROP Z NOTED.  PROP SYNC OPERATED NORMAL.  NO DISCREPANCIES NOTED.

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