# SDR CA090727007

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 23, 2009
- Submitted: October 23, 2009
- Operation: General aviation
- Make and model: Robsin R44RAVENII
- Aircraft time: 810 hours
- Engine: Lyc IO540AE1A5
- System (JASC): [2420 · AC Generation System](https://openairdocs.org/jasc/2420)
- Part: Bearing
- Condition: Worn
- Location: Alternator
- Component: Alternator
- Component part number: ALU85
- 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/CA090727007

## Discrepancy

WHILE CHANGING CRANKSHAFT SEAL THE ALTERNATOR BEARINGS WERE FOUND TO HAVE EXCESSIVE RADIAL PLAY.   ALTERNATOR REPLACED, SN AND TSN NOT KNOWN AT THIS TIME.

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