# SDR CA091214010

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 13, 2009
- Submitted: January 19, 2010
- Operation: General aviation
- Make and model: Lkheed 382G
- Aircraft time: 39,787 hours
- Engine: Allsn 501D22A
- Propeller: Hamstd 54H60117
- System (JASC): [6120 · Propeller Controlling System](https://openairdocs.org/jasc/6120)
- Part: Housing
- Part number: 582855
- Condition: Malfunctioned
- Location: Prop Valve
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: E, A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA091214010

## Discrepancy

(CAN) CREW REPORTED THAT WHILE IN CRUISE FLIGHT, IT SEEMED LIKE THE NR 3 ENGINE OVERSPEEDED, THEN DE-COUPLED AND RE-COUPLED AGAIN.  PROPELLER RPM READ 107 - 110  PERCENT.  MAINTENANCE REPLACED THE NR 3 PROPELLER VALVE HOUSING, ACCOMPLISHED GROUND RUNS, AND THEN RETURNED THE AIRCRAFT TO SERVICE. (TC NR 20091214010)

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