Narrative:

[The] engine shutdown while on climb out. [I] immediately switched to redundant systems but this had no effect. Turned toward a nearby highway and safely landed in southbound lanes. Exited cockpit and pulled aircraft to the side of the road. No injuries to anyone; no damage to aircraft or anything else. FAA inspector was called to scene and inspected paperwork (airworthiness certificate; aircraft registration; and pilots license). Cause: a nut used to mount the efi [electronic fuel injection] computer came loose; fell onto a circuit board; and shorted electronics. Prevention: installed nutplates (riveted in place) in place of nuts.

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Original NASA ASRS Text

Title: The pilot of a homebuilt aircraft suffered an engine failure when the Electronic Fuel Injection shorted out. Landed safely on a nearby highway.

Narrative: [The] engine shutdown while on climb out. [I] immediately switched to redundant systems but this had no effect. Turned toward a nearby highway and safely landed in southbound lanes. Exited cockpit and pulled aircraft to the side of the road. No injuries to anyone; no damage to aircraft or anything else. FAA Inspector was called to scene and inspected paperwork (Airworthiness Certificate; Aircraft Registration; and Pilots License). Cause: A nut used to mount the EFI [Electronic Fuel Injection] computer came loose; fell onto a circuit board; and shorted electronics. Prevention: Installed nutplates (riveted in place) in place of nuts.

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.