Cause undetermined in 2010 fatal Colo. plane crash



DENVER (AP) — Federal investigators say they couldn’t tell why a single-engine plane apparently lost power before it crashed in the Colorado mountains in 2010, killing two people from California and one from Washington state.

The National Transportation Safety Board’s final report on the crash, dated Wednesday, says it appears the propeller may not have been turning at the time of the Aug. 4, 2010, crash. The report says investigators found no other signs of pre-crash mechanical trouble.

The crash killed the 70-year-old pilot, John Howard of Sunnyvale, Calif., and his passengers, 56-year-old Catherine Heveran of Sunnyvale and 25-year-old James Chatham of Spokane, Wash.

The Beech C-35 had taken off from Boulder en route to San Jose, Calif. It crashed near Rollinsville, 30 miles west of downtown Denver and 13 miles from Boulder.