# SDR YV3R2023111500586

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 19, 2023
- Submitted: November 15, 2023
- 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-72E
- Make and model: Robsin R44RAVENII
- Aircraft serial: 14562
- Aircraft time: 20 hours
- Engine: Lyc IO540AE1A5
- System (JASC): [6240 · Main Rotor Indicating System](https://openairdocs.org/jasc/6240)
- Part: Warning Unit
- Part number: A5699
- Part serial: LOT120
- Condition: Defective
- Part time: 20 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/YV3R2023111500586

## Discrepancy

CUSTOMER REPORTED WARNING UNIT, LOW RPM P/N: A569-9 PART FAILURE, HORN LIGHT STAYS ON.

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