# SDR DXTA2025090804842

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 5, 2025
- Submitted: September 8, 2025
- Operation: Air carrier
- Aircraft: [N781QS](https://openairdocs.org/aircraft/N781QS), registered now
- Make and model: Bombdr BD1001A10
- Aircraft serial: 20570
- Aircraft time: 10,520 hours, 6,284 cycles
- System (JASC): [2421 · AC Generator-Alternator](https://openairdocs.org/jasc/2421)
- Part: Generator
- Condition: Failed
- Location: Zone 400
- Stage of operation: CL
- How discovered: O
- Nature of condition: G
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DXTA2025090804842

## Discrepancy

LEFT GENERATOR FAILED AT 34,000. RIGHT GENERATOR FAILED AT 34,000 FEET.   REMOVED LT GENERATOR POWER MODULE, P/N: R3608·011, S/N: 3270G, AND INSTALLED NEW GENERATOR POWER MODULE, P/N: R3608-011, S/N: 4816G, ACCOMPLISHED OPERATIONAL CHECK AND FOUND NO DISCREPANOES. WORK ACCOMPLISHED IN REFERENCE TO BOMBARDIER CHALLENGER 350 AMM 24-31-21. REMOVED RH GENERATOR POWER MODULE, P/N: R3608-011, S/N: 4869G, AND INSTALLED NEW GENERATOR POWER MODULE, P/N: R3608-0LL, S/N: 4830G. ACCOMPLISHED OPERATIONAL CHECK AND FOUND NO DISCREPANCIES. WORK ACCOMPLISHED IN REFERENCE TO BOMBARDIER CHALLENGER 350 AMM 24-31-21.

---
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.