WICHITA, Kan. (AP) — The National Transportation Safety Board says pilot inaction was the likely cause of an October 2014 plane crash in Wichita that left four people dead, including the pilot.

The Wichita Eagle reports the NTSB report issued Tuesday says 53-year-old pilot Mark Goldstein failed to follow emergency procedures after the plane lost power in its left engine.

The NTSB says the Beechcraft King Air B200 crashed into a FlightSafety building at Wichita Eisenhower National Airport. In addition to those who were killed, six others were injured in the crash.

A Texas aviation company had purchased the airplane two days before the crash.

NTSB says it doesn’t know why the engine lost power because a post-crash inspection didn’t reveal anything that would have precluded normal operation of the aircraft.