# SDR YV3R2019062720135

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 24, 2019
- Submitted: June 28, 2019
- 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: B-70T
- Make and model: Robsin R44RAVENII
- Aircraft serial: 14084
- Aircraft time: 158 hours
- Engine: Lyc IO540AE1A5
- System (JASC): [3414 · Airspeed/Mach Indicator](https://openairdocs.org/jasc/3414)
- Part: Indicator
- Part number: C5991
- Part serial: 216440
- Condition: Inoperative
- Location: Airspeed
- Part time: 158 hours
- Stage of operation: NR
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/YV3R2019062720135

## Discrepancy

CUSTOMER REPORTED AIRSPEED INDICATOR P/N: C599-1 INDICATING NEEDLE SHAKES VIOLENTLY IN FLIGHT ACCELERATION.

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