# SDR 2026FA0000210

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 13, 2026
- Submitted: March 24, 2026
- Operation: General aviation
- Aircraft: [N993MM](https://openairdocs.org/aircraft/N993MM), registered now
- Make and model: Cirrus SR22
- Registry model: [Cirrus SR22](https://openairdocs.org/model/cirrus-design-sr22) (OpenAirDocs)
- Aircraft serial: 2585
- Aircraft time: 1,739 hours
- Engine: Cont IO550N
- Engine time: 1,739 hours
- System (JASC): [2434 · DC Generator-Alternator](https://openairdocs.org/jasc/2434)
- Part: Alternator
- Part number: C28150
- Part serial: HZ030853
- Condition: Failed
- Part time: 52 hours
- Stage of operation: CR
- How discovered: O
- Nature of condition: H
- Precautionary procedure: H, A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2026FA0000210

## Discrepancy

FACTORY NEW ALTERNATOR SUDDENLY FAILED AFTER ONE MONTH AND 52 FLIGHT HOURS SINCE INSTALLATION. FAILURE OCCURRED IN CRUISE FLIGHT RESULTING IN A TOTAL ELECTRICAL POWER LOSS TO THE MAIN AIRCRAFT BATTERY. THIS NECESSITATED A PROMPT DIVERSION AND UNSCHEDULED LANDING.

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