Narrative:

During a repositioning flight from I encountered a severe vibration in the engine and loss of power. I declared a mayday and spoke with two airline pilots advising them I was likely going to make a precautionary landing possibly on the highway. I found a small-uncharted dirt strip at the corner of two highways. I set down on the dirt strip with no damage to the aircraft or injury.

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Original NASA ASRS Text

Title: When small aircraft engine starts vibrating; pilot elected to make a precautionary landing on a dirt strip.

Narrative: During a repositioning flight from I encountered a severe vibration in the engine and loss of power. I declared a mayday and spoke with two airline pilots advising them I was likely going to make a precautionary landing possibly on the highway. I found a small-uncharted dirt strip at the corner of two highways. I set down on the dirt strip with no damage to the aircraft or injury.

Data retrieved from NASA's ASRS site as of April 2012 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.