# SDR 99ZZZX2847

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 20, 1999
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: [N317MC](https://openairdocs.org/aircraft/N317MC), registered now
- Make and model: Bolkms BK117C1
- Aircraft serial: 7505
- System (JASC): [7714 · Engine RPM Indicating System](https://openairdocs.org/jasc/7714)
- Part: Indicator
- Part number: 117902111
- Condition: Reads High
- Location: Triple Tach
- Part time: 747 hours
- Stage of operation: IN
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/99ZZZX2847

## Discrepancy

ROTOR RPM READS 870, 10 PERCENT HIGH.  REMOVED AND REPLACED.

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