# SDR 2022F00248

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 31, 2022
- Submitted: May 31, 2022
- Operation: General aviation
- Aircraft: [N901XM](https://openairdocs.org/aircraft/N901XM), registered now
- Make and model: Agusta AW109SP
- Registry model: [Agusta AW109SP](https://openairdocs.org/model/agustawestland-aw109sp) (OpenAirDocs)
- Aircraft serial: 22422
- Aircraft time: 844 hours
- System (JASC): [6220 · Main Rotor Head](https://openairdocs.org/jasc/6220)
- Part: Damper
- Part number: 109011239105
- Part serial: MCR04150
- Condition: Cracked
- Location: Main Rotor Syste
- Part time: 844 hours
- Component: Main Rotor Head, Agusta
- Component part number: 109011202115
- Stage of operation: AA
- How discovered: O
- Nature of condition: P
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2022F00248

## Discrepancy

DURING PREFLIGHT AMT FOUND A CRACK AT THE INBOARD UPPER LUG OF ONE OF THE MAIN ROTOR DAMPERS. THIS WAS DETECTED VISUALLY WITH NO ENHANCEMENTS. DEFECTIVE DAMPER WAS REMOVED AND A SERVICEABLE DAMPER WAS INSTALLED.

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