# SDR CA970728015

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 16, 1997
- Submitted: March 26, 2000
- Operation: Air carrier
- Make and model: Dhav DHC2MK1
- Engine: Pwa R985AN14B
- System (JASC): [7414 · Magneto/Distributor](https://openairdocs.org/jasc/7414)
- Part: Bearing
- Condition: Worn
- Location: Mag Rotor Shaft
- Component: Bosch, SB9RU3
- Stage of operation: NR
- Nature of condition: E, R
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA970728015

## Discrepancy

(CAN) ENGINE RUNNING ROUGH AND BACKFIRING. INVESTIGATION FOUND THE MAGNETO ROTOR SHAFT BEARING WORN RESULTING IN THE BREAKER POINTS MOVING OUT OF TOLERANCE.

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