# SDR YV3R2021060900461

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 1, 2021
- Submitted: June 9, 2021
- Operation: General aviation
- Aircraft: [N715SG](https://openairdocs.org/aircraft/N715SG), registered now
- Make and model: Robsin R44
- Aircraft serial: 1261
- Aircraft time: 6,567 hours
- Engine: Lyc O540F1B5
- System (JASC): [6240 · Main Rotor Indicating System](https://openairdocs.org/jasc/6240)
- Part: Dual Tachometer
- Part number: C7924
- Part serial: 7852
- Condition: Defective
- Part time: 9 hours
- Stage of operation: NR
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/YV3R2021060900461

## Discrepancy

CUSTOMER REPORTED DUAL TACHOMETER P/N: C792-4 ENGINE NEEDLE PEGS WITH POWER APPLIED.

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