# SDR 2020FA0000109

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 14, 2019
- Submitted: February 4, 2020
- Operation: General aviation
- Aircraft: [N340UM](https://openairdocs.org/aircraft/N340UM), registered now
- Make and model: Cessna 120
- Registry model: [Cessna 120](https://openairdocs.org/model/cessna-120) (OpenAirDocs)
- Aircraft serial: 340A0698
- Engine: Cont TSIO520*
- System (JASC): [2434 · DC Generator-Alternator](https://openairdocs.org/jasc/2434)
- Part: Shaft
- Condition: Broken
- Location: Alternator
- Part time: 331 hours
- 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/2020FA0000109

## Discrepancy

ALTERNATOR WAS INSTALLED ON ENGINE.  ENGINE INSTALLED IN ACFT ON 3/1/2017 ACFT TT 5410.1 SHAFT IN ALTERNATOR BROKEN, REMOVED 6/12/2019 ACFT TT5740.9 TIME IN SERVICE 330.8 HOURS.

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