# SDR CA130318009

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 12, 2013
- Submitted: September 14, 2015
- Operation: General aviation
- Make and model: Lear 60LEAR
- Engine: Pwa PW305A
- System (JASC): [7200 · Engine (Turbine/Turboprop)](https://openairdocs.org/jasc/7200)
- Part: Engine
- Condition: Vibration
- Location: Left
- Stage of operation: CL
- How discovered: O
- Nature of condition: E, J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA130318009

## Discrepancy

(CAN) ON A REVENUE FLIGHT, DURING ACCELERATION TO TAKEOFF, THE PILOT HEARD A RUMBLING NOISE FROM THE LT ENGINE AND FELT THE VIBRATION.  THE ACFT RETURNED TO THE HANGAR AND UNLOADED PASSENGERS.  THE SAME SCENARIO WAS REPEATED ON A GROUND RUN.  VISUAL INSPECTION DID NOT REVEAL ANYTHING ABNORMAL. TROUBLESHOOTING ONGOING.

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