# SDR YV3R2023042700559

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 12, 2023
- Submitted: April 27, 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: [N522SB](https://openairdocs.org/aircraft/N522SB), registered now
- Make and model: Robsin R22BETAII
- Aircraft serial: 4845
- Aircraft time: 453 hours
- Engine: Lyc O360J2A
- System (JASC): [6240 · Main Rotor Indicating System](https://openairdocs.org/jasc/6240)
- Part: Warning Unit
- Part number: A5695
- Part serial: LOT119
- Condition: Defective
- Part time: 453 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/YV3R2023042700559

## Discrepancy

CUSTOMER REPORTED WARNING UNIT ASSEMBLY, LOW RPM P/N: A569-5 LOW ROTOR HORN SOUND INOPERATIVE.

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