N475TW – Welch RV-9 – 2007-10-14 NTSB Accident Report

On October 14, 2007, a Welch RV-9 (N475TW) was involved in an incident near Bigfork, MT. All 2 people aboard were uninjured. The aircraft sustained substantial damage.

The National Transportation Safety Board determined the probable cause of this incident to be: Fuel starvation while on downwind for landing. The pilot's inadequate in-flight fuel management planning was a factor.

The pilot reported that at the completion of a third flight for the day, he was returning to the airport for landing. The flight entered downwind when the engine sputtered, ran smoothly, then lost power. The pilot switched the fuel selector from the right tank to the left tank and attempted to restart the engine. The engine would not start and the pilot initially thought that he could make the end of the runway, however the aircraft lost altitude and the landing gear hit the edge of the road short of the runway and the aircraft slid through a barb wire fence and onto the runway. Both wings and the tail section were substantially damaged.

After the accident, the pilot stated that he found the right fuel tank "extremely low" and the left fuel tank about a third full.

This incident is documented in NTSB report SEA08CA010. AviatorDB cross-references NTSB investigation data with FAA registry records to provide comprehensive safety information for aircraft N475TW.