# SDR 2009FA0000295

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 14, 2009
- Submitted: April 15, 2009
- Operation: General aviation
- Aircraft: [N256CD](https://openairdocs.org/aircraft/N256CD), registered now
- Make and model: Cirrus SR22
- Registry model: [Cirrus SR22](https://openairdocs.org/model/cirrus-design-sr22) (OpenAirDocs)
- Aircraft serial: 0234
- Aircraft time: 542 hours
- Engine: Cont IO550*
- System (JASC): [2434 · DC Generator-Alternator](https://openairdocs.org/jasc/2434)
- Part: Flange
- Condition: Cracked
- Location: Alternator
- Part time: 542 hours
- Component: Alternator
- Component part number: BC4101
- Stage of operation: IN
- How discovered: O
- Nature of condition: K
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2009FA0000295

## Discrepancy

CUSTOMER REPORTED LARGE OIL LEAK.  INSPECTED AND FOUND NR 2 STANDBY ALTERNATOR MOUNTING FLANGE CRACKED.  .7500 OF THE FLANGE HAD COMPLETELY SEPARATED FROM THE ALTERNATOR.  ONLY ONE MOUNTING STUD HELD THE ALTERNATOR ON THE ENGINE.  CORRECTIVE ACTION WAS TO INSTALL A NEW ALTERNATOR.

---
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.