# SDR CA980713002

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 23, 1997
- Submitted: March 26, 2000
- Operation: Air carrier
- Make and model: Bell 206B
- Registry model: [Bell 206B](https://openairdocs.org/model/bell-206b) (OpenAirDocs)
- Engine: Allsn 250C20
- System (JASC): [7714 · Engine RPM Indicating System](https://openairdocs.org/jasc/7714)
- Part: Shaft
- Part number: 206062627003
- Condition: Sheared
- Location: Tach Generator
- Stage of operation: CL
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA980713002

## Discrepancy

(CAN) IN-FLIGHT, THE N1 GAS PRODUCER INDICATOR WENT TO ZERO AND ENGINE OUT LIGHT AND HORN ACTIVATED.  THE TOT AND N2 ENGINE INDICATOR APPEARED NORMAL.  A PAN AND EMERGENCY WAS DECLARED AND AIRCRAFT LANDED WITHOUT INCIDENT.  FOUND N1 TACHOMETER GENERATOR HAD SEIZED BEARINGS AND SHEARED THE SHAFT.  REPLACED.

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