# SDR 2012FA0000803

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 6, 2012
- Submitted: December 7, 2012
- Operation: General aviation
- Aircraft: N8840K
- Make and model: Cessna 414A
- Registry model: [Cessna 414A](https://openairdocs.org/model/cessna-414a) (OpenAirDocs)
- Aircraft serial: 0236
- Aircraft time: 13,355 hours
- Engine: Cont TSIO520*
- Engine time: 7,412 hours
- System (JASC): [2400 · Electrical Power System](https://openairdocs.org/jasc/2400)
- Part: Mount
- Condition: Cracked
- Location: Alternator
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2012FA0000803

## Discrepancy

DURING ROUTINE INSPECTION NOTICED LT ENGINE OIL LEAK.  REMOVED LT ALTERNATOR AND FOUND 4" CRACK AFT SECTION OF ALTERNATOR MOUTING FLANGE TO BASE OF NR 5 CYLINDER. PERFORMED DYE PENETRANT INSPECTION CRACK BECAME MORE VISIABLE.

---
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.