# SDR V2JA201201160018

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 28, 2012
- Submitted: May 29, 2012
- Operation: Air carrier
- Aircraft: N136SL
- Make and model: Piagio P180
- Aircraft serial: 1101
- Aircraft time: 7,582 hours, 5,573 cycles
- Engine: Pwa PT6A66
- Propeller: Hartzl HCE5N3L
- System (JASC): [6123 · Propeller Feathering/Reversing](https://openairdocs.org/jasc/6123)
- Part: Autofeather Sys
- Condition: Malfunctioned
- Location: Right
- Stage of operation: AP
- How discovered: O
- Nature of condition: S
- Precautionary procedure: H
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/V2JA201201160018

## Discrepancy

DURING APPROACH, THE CREW REPORTS THEY EXPERIENCED AN UN-COMMANDED AUTO-FEATHER ON THE RT ENGINE.  ACFT LANDED WITHOUT INCIDENT.  ADJUSTED RT SERRATED WASHER IAW AMM 76-10-00, ADJUSTED AUTOFEATHER CAM SWITCHES IAW AMM 76-20-00, AUTOFEATHER SYS OPS CHECKED GOOD IAW AMM 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.