Stinson pilot experiences engine vibration and elects to land on a highway as a precaution with no i...

Attributes
ACN	1107298
Time
Date	201308
Local Time Of Day	0601-1200
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Light	Daylight
Aircraft 1
Make Model Name	Small Aircraft High Wing 1 Eng Fixed Gear
Operating Under FAR Part	Part 91
Flight Phase	Cruise
Route In Use	Direct
Flight Plan	None
Component
Aircraft Component	Reciprocating Engine Assembly
Person 1
Function	Pilot Flying Single Pilot
Qualification	Flight Crew Private
Experience	Flight Crew Last 90 Days 5 Flight Crew Total 116.4 Flight Crew Type 16
Events
Anomaly	Aircraft Equipment Problem Critical

Narrative:

During a flight with a pilot friend a vibration occurred in the engine. We determined we would not make it back safely to an airport and needed alternative plans. A road was off our wing and with power pulled to idle we determined that was the only course of action we had. We paralleled the highway; contacted emergency service on 121.5 and indicated an emergency and that we were landing on a highway. Once clear of traffic I landed the stinson in the southbound lane. I contacted 121.5 once again that there were no injuries or others involved. The FAA was notified and was on scene hours later. They released the plane to me calling it an occurrence with no damage to property or persons. They informed me I followed regulations and acted in accordance with emergency procedures.

Original NASA ASRS Text

Title: Stinson pilot experiences engine vibration and elects to land on a highway as a precaution with no injuries or damage to the aircraft.

Narrative: During a flight with a pilot friend a vibration occurred in the engine. We determined we would not make it back safely to an airport and needed alternative plans. A road was off our wing and with power pulled to idle we determined that was the only course of action we had. We paralleled the highway; contacted emergency service on 121.5 and indicated an emergency and that we were landing on a highway. Once clear of traffic I landed the Stinson in the southbound lane. I contacted 121.5 once again that there were no injuries or others involved. The FAA was notified and was on scene hours later. They released the plane to me calling it an occurrence with no damage to property or persons. They informed me I followed regulations and acted in accordance with emergency procedures.

Data retrieved from NASA's ASRS site as of July 2013 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.