# SDR YV3R2020012820236

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 18, 2020
- Submitted: January 28, 2020
- Operation: General aviation
- Filed by: [Robinson Helicopter Company Inc, repair station YV3R012M](https://openairdocs.org/faa-repair-station/YV3R012M/robinson-helicopter-company-inc.md) (OpenAirDocs)
- Aircraft: G-OHA
- Make and model: Robsin R44RAVENII
- Aircraft serial: 10743
- Aircraft time: 2,202 hours
- Engine: Lyc IO540AE1A5
- System (JASC): [6240 · Main Rotor Indicating System](https://openairdocs.org/jasc/6240)
- Part: Tachometer
- Part number: C7924R
- Part serial: 3257
- Condition: Malfunctioned
- 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/YV3R2020012820236

## Discrepancy

CUSTOMER REPORTED DUAL TACHOMETER P/N: DC792-4R IS UNSERVICEABLE.  OPERATIONAL CHECK REVEALED ENGINE NEEDLE WAS STICKING.

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