# SDR Q2SA2012091178305

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 11, 2012
- Submitted: September 11, 2012
- Operation: Air carrier
- Aircraft: [N783SA](https://openairdocs.org/aircraft/N783SA), registered now
- Make and model: Boeing 747281F
- Aircraft serial: 23919
- Aircraft time: 95,501 hours, 18,495 cycles
- System (JASC): [2421 · AC Generator-Alternator](https://openairdocs.org/jasc/2421)
- Part: Generator
- Condition: Failed
- Location: Nr 1
- Stage of operation: CR
- How discovered: O
- Nature of condition: H, G
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/Q2SA2012091178305

## Discrepancy

WHILE EN ROUTE FROM MIA TO ANC EXPERIENCED A NR 1 AND NR 3 GENERATOR FAILURE.  THEREAFTER DISPATCH WAS NOTIFIED BY THE CREW, THE AIRCRAFT HAD LOST A THIRD GENERATOR.  SHORTLY AFTER THAT THEY LOST THE FOURTH AND FINAL AIRCRAFT GENERATOR JUST BEFORE LANDING.  THE AIRCRAFT BLEW THIRTEEN TIRES AND WAS DISABLED AFTER LANDING.  A SUPPLEMENTAL REPORT IS FORTHCOMING.

---
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.