# SDR YV3R2021052800458

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 19, 2021
- Submitted: May 28, 2021
- Operation: General aviation
- Aircraft: [N73PT](https://openairdocs.org/aircraft/N73PT), registered now
- Make and model: Robsin R66
- Aircraft serial: 1027
- Aircraft time: 60 hours
- System (JASC): [6240 · Main Rotor Indicating System](https://openairdocs.org/jasc/6240)
- Part: Warning Unit
- Part number: A56911
- Part serial: LOT46
- Condition: Defective
- Location: Low Rp,
- Part time: 60 hours
- Stage of operation: NR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/YV3R2021052800458

## Discrepancy

CUSTOMER REPORTED WARNING UNIT (LOW RPM) P/N: A569-11 WAS NOT FUNCTIONING CORRECTLY, LOW RPM LIGHT ILLUMINATES WITH HORN SOUNDING.

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