# SDR V2JA078L113680512

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 5, 2012
- Submitted: August 10, 2012
- Operation: Air carrier
- Aircraft: N167SL
- Make and model: Piagio P180
- Aircraft serial: 1136
- Aircraft time: 5,512 hours, 4,280 cycles
- Engine: Pwa PT6A66
- Propeller: Hartzl HCE5N3
- System (JASC): [6122 · Propeller Governor](https://openairdocs.org/jasc/6122)
- Part: Governor
- Part number: 210962
- Part serial: 15093369
- Condition: Failed
- Location: Propeller
- Part time: 5,912 hours, 4,517 cycles
- Stage of operation: AP
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/V2JA078L113680512

## Discrepancy

DURING FINAL, THE RT PROP RPM WOULD FLUCTUATE UNCONTROLLABLY, CREW WAS ABLE TO LAND SAFELY.   R & R RT OVERSPEED GOVERNOR.  INSTALLED SERVICEABLE UNIT, SECURITY, LEAK CHECKS SERVICEABLE.  WORK COMPLETED IAW AMM, CH: 61-20-00 & 71-00-00.

---
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.