# SDR YV3R2022092300541

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 15, 2022
- Submitted: September 23, 2022
- Operation: General aviation
- Aircraft: VH-YH
- Make and model: Robsin R22BETAII
- Aircraft serial: 4829
- Aircraft time: 600 hours
- Engine: Lyc O360J2A
- System (JASC): [6300 · Main Rotor Drive System](https://openairdocs.org/jasc/6300)
- Part: Sheave
- Part number: A4931
- Part serial: LOT142A
- Condition: Defective
- Part time: 600 hours
- 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/YV3R2022092300541

## Discrepancy

CUSTOMER REPORTED SHEAVE (LOWER) P/N: A493-1 HAS BUBBLING UNDER METALIZING MATERIAL.

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