# SDR 99ZZZX3296

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 6, 1999
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N93LF
- Make and model: Bolkms BO105LSA3
- Aircraft serial: 2038
- Engine: Allsn 250C28C
- System (JASC): [7200 · Engine (Turbine/Turboprop)](https://openairdocs.org/jasc/7200)
- Part: Engine
- Condition: Malfunctioned
- Location: Engine Bay
- Part time: 2,450 hours
- Stage of operation: CR
- Nature of condition: J
- Precautionary procedure: E, A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/99ZZZX3296

## Discrepancy

FLYING FROM POCATELLO TO TWIN FALLS, PILOT ENCOUNTERED ABNORMAL TORQUE CHANGES IN NR 1 ENGINE.  IT HAPPENED TWICE.  PILOT NOTED LOW OIL PRESSURE, THEN NO OIL PRESSURE.  THE NR 1 ENGINE IS SHUT DOWN IN-FLIGHT AND A LANDING WAS MADE AT BURLEY AIRPORT.  NO EXTERNAL OIL LEAKS FOUND.  OIL LEVEL ALMOST AT MAXIMUM AT THE DAILY INSPECTION.  SUBMITTER SUGGESTED PROBLEM INTERAL TURBINE OR GEARBOX SEAL.

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