On March 30, 2005, a Cessna 140 (registration N2204N) was involved in an aviation accident near Denali Park, AK. Investigators recorded the probable cause as: The loss of engine power during takeoff and cruise flight for an undetermined reason, which resulted in an emergency descent/landing, and collision with trees. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive.
A solo private pilot experienced engine roughness during takeoff, continued due to insufficient runway, then lost power en route. Emergency forced landing resulted in left wing striking a tree and aircraft coming to rest inverted in a creek.
Accident Summary
A solo private pilot was conducting a personal cross-country flight under 14 CFR Part 91. During the takeoff roll, the engine began running rough. The pilot applied carburetor heat and continued the takeoff because there was not enough runway remaining to stop. About 5 miles south of the airport, the engine lost all power. The pilot executed an emergency forced landing, during which the left wing struck a tree. The airplane came to rest inverted in a creek.
Pilot Statement
The pilot stated that prior to the flight, he had preheated the airplane engine. He reported no preaccident mechanical anomalies with the airplane. The pilot speculated that the power loss might have been due to ice in a gas line, restricted airflow to the carburetor from fresh snow, or possibly a stuck valve.
Damage
The airplane sustained structural damage to the wings and fuselage during the accident sequence.