# SDR ACE093003

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 30, 2003
- Submitted: October 3, 2003
- Operation: Air carrier
- Aircraft: N112AX
- Make and model: Beech 1900C
- Registry model: [Beech 1900C](https://openairdocs.org/model/beech-1900c) (OpenAirDocs)
- Aircraft serial: UC45
- Aircraft time: 39,854 hours, 35,141 cycles
- Engine: Pwa PT6A65B
- Engine time: 6,857 hours, 8,158 cycles
- System (JASC): [2420 · AC Generation System](https://openairdocs.org/jasc/2420)
- Part: Csd
- Condition: Failed
- Location: Governor
- Stage of operation: CL
- How discovered: O
- Nature of condition: R, J
- Precautionary procedure: E, A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ACE093003

## Discrepancy

PILOT REPORTED NR 2 ENGINE TORQUE STARTED TO SURGE (1500 LBLS) AND WAS SHUT DOWN PER THE QRH.  MAINTENANCE REPLACED THE NR 2 ENGINE CONSTANT SPEED GOVERNOR AND OVERSPEED GOVERNOR FOR TROUBLESHOOTING (THE REPORTED PROBLEM COULD NOT BE DUPLICATED ON THE GROUND).

---
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.