# SDR 9JLA2013120404241

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 17, 2013
- Submitted: December 4, 2013
- Operation: Air carrier
- Aircraft: N92LP
- Make and model: Beech 400A
- Registry model: [Beech 400A](https://openairdocs.org/model/hawker-beechcraft-400a) (OpenAirDocs)
- Aircraft serial: RK314
- Aircraft time: 5,058 hours, 4,042 cycles
- System (JASC): [2424 · AC Regulator](https://openairdocs.org/jasc/2424)
- Part: Gcu
- Part number: 51539006J
- Part serial: Y1434
- Condition: Defective
- Location: Left
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: H
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/9JLA2013120404241

## Discrepancy

THE CREW REPORTED THAT THE LT GEN FAILED IN FLIGHT & THEY WERE UNABLE TO RESET THE GEN IAW THE ACFT CHECKLIST. TROUBLESHOOTING IDENTIFIED THE LT GCU AS DEFECTIVE, PN 51539-006J, SN Y1434.  THE DEFECTIVE GCU WAS REMOVED & AN OVERHAULED GCU WAS INSTALLED.  OPERATIONS CHECKED SATISFACTORY & THE AIRCRAFT WAS RETURNED TO SERVICE.

---
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.