# SDR UPX2007F00000

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 4, 2007
- Submitted: March 13, 2007
- Operation: Air carrier
- Aircraft: [N74435](https://openairdocs.org/aircraft/N74435), registered now
- Make and model: Robsin R44RAVENII
- Aircraft serial: 10718
- Engine: Lyc IO540*
- System (JASC): [6200 · Main Rotor System](https://openairdocs.org/jasc/6200)
- Part: Bearing
- Condition: Lack Of Lube
- Location: Clutch
- Part time: 1,347 hours
- Component: Clutch
- Component part number: C1664
- 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/UPX2007F00000

## Discrepancy

CLUTCH MAKING UNUSUAL NOISES ON COAST DOWN.  UPON REMOVAL THE BEARINGS IN THE CLUTCH FELT ROUGH AND DRY.  COMPONENT RETURNED TO MFG FOR O/H.  (K)

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.