# SDR CA091021010

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 16, 2009
- Submitted: December 1, 2009
- Operation: General aviation
- Make and model: Cessna 172N
- Registry model: [Cessna 172N](https://openairdocs.org/model/cessna-172n) (OpenAirDocs)
- Aircraft time: 5,934 hours
- Engine: Lyc O320D2J
- System (JASC): [2436 · DC Regulator](https://openairdocs.org/jasc/2436)
- Part: Volt Regulator
- Part number: VR500010
- Condition: Failed
- Location: Dc System
- Stage of operation: TX
- How discovered: O
- Nature of condition: H
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA091021010

## Discrepancy

(CAN) CREW REPORTED ALTERNATOR NOT CHARGING AFTER ENGINE START-UP. ENGINE SHUT DOWN. TROUBLESHOOTING INDICATED VOLTAGE REGULATOR AT FAULT. NEW REGULATOR INSTALLED AND GROUND RUNS CONFIRMED CHARGING SYSTEM FUNCTIONING CORRECTLY. (TC 20091021010)

---
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.