# SDR AD6A99001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 12, 1999
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N82178
- Make and model: Lkheed 382G
- Aircraft serial: 5048
- System (JASC): [6120 · Propeller Controlling System](https://openairdocs.org/jasc/6120)
- Part: Valve Housing
- Part number: 582855
- Condition: Defective
- Location: Propeller
- Component: Hamstd
- Stage of operation: CR
- Nature of condition: P
- Precautionary procedure: H
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AD6A99001

## Discrepancy

NR 4 PROPELLER FLUCTUATED 1 TO 1.5 PERCENT, WENT TO MECK AND RPM DROPPED TO 97 PERCENT WITH MOVEMENT OF THROTTLE.  SHUT ENGINE DOWN PRECAUTIONARY.  MAINTENANCE FOUND A FAULTY PROPELLER VALVE HOUSING PN 582855 AND REPLACED SAME.  (X)

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