# SDR 8HBR20211012033

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 29, 2021
- Submitted: October 12, 2021
- Operation: General aviation
- Filed by: [Hillsboro Aero Academy LLC, repair station 8HBR698C](https://openairdocs.org/faa-repair-station/8HBR698C/hillsboro-aero-academy-llc.md) (OpenAirDocs)
- Aircraft: [N8340S](https://openairdocs.org/aircraft/N8340S), registered now
- Make and model: Robsin R22BETA
- Aircraft serial: 2640
- Aircraft time: 10,147 hours
- System (JASC): [6340 · Rotor Drive Indicating System](https://openairdocs.org/jasc/6340)
- Part: Dual Tachometer
- Part number: A7925
- Part serial: B2111702
- Condition: Fluctuates
- Location: Instrument Panel
- Part time: 3 hours
- Stage of operation: NR
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/8HBR20211012033

## Discrepancy

ENGINE SIDE OF DUAL TACHOMETER HAD INTERMITTENT INDICATION ISSUES.

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