# SDR YV3R2020092900355

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 24, 2020
- Submitted: September 29, 2020
- Operation: General aviation
- Aircraft: [N801GT](https://openairdocs.org/aircraft/N801GT), registered now
- Make and model: Robsin R66
- Aircraft serial: 0981
- Aircraft time: 126 hours
- Engine: Allsn 250C30
- System (JASC): [6240 · Main Rotor Indicating System](https://openairdocs.org/jasc/6240)
- Part: Dual Tachometer
- Part number: F7921
- Part serial: 0939
- Condition: Defective
- Part time: 126 hours
- Stage of operation: TX
- 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/YV3R2020092900355

## Discrepancy

CUSTOMER REPORTED DUAL TACHOMETER ASSEMBLY P/N: F792-1 NEEDLES STICK OCCASIONALLY DURING START-UP.

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