# SDR V2JA201201160017

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 28, 2012
- Submitted: May 29, 2012
- Operation: Air carrier
- Aircraft: N149SL
- Make and model: Piagio P180
- Aircraft serial: 1077
- Aircraft time: 7,337 hours, 5,547 cycles
- 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/V2JA201201160017

## Discrepancy

DURING APPROACH, CREW EXPERIENCED AN UNCOMMANDED AUTOFEATHER ON THE RT ENGINE. LANDED WITHOUT INCIDENT.  AFTER LANDING, THE RT ENGINE WOULD NOT GO INTO BETA MODE.  INSPECTED THROTTLE CABLE & LINKAGE FOR OBSTRUCTION & FREEDOM OF MOVEMENT IAW AMM 76-10-00.  PERFORMED OPS CHECK OF CAM SWITCHS IAW AMM 76-11-00.  PERFORMED AUTOFEATHER HIGH & LOW PRESSURE SWITCH FUNCTIONAL TEST IAW AMM 61-21-00.  NO PROBLEM NOTED AT THIS TIME.

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