Aviation Accident Summaries

Aviation Accident Summary FTW96LA115

GUNNISON, CO, USA

Aircraft #1

N4262L

Cessna 172G

Analysis

While in cruise at 13,000 feet msl on a cross-country flight, engine power gradually deteriorated to a total loss of power. The pilot attempted remedial action without effect and made a forced landing in a field approximately 4 miles from an airport. During the landing, the aircraft encountered rough terrain and was damage. An examination of the aircraft fuel, fuel system, air system, engine, and carburetor provided no evidence of abnormalities which would cause a loss of power. The pilot had the same experience with this aircraft approximately six months earlier in the same area and landed the aircraft in a field without damage.

Factual Information

On February 9, 1996, at 1415 mountain standard time, a Cessna 172G, N4262L, conducted a forced landing in a field approximately 4 miles west of Gunnison County Airport, Gunnison, Colorado, following a total loss of power. The private pilot was not injured and the aircraft sustained substantial damage. The flight was being conducted under Title 14 CFR Part 91 and a VFR flight plan was filed for this personal flight which originated in Delta, Colorado, at 1415. Visual meteorological conditions prevailed. According to the pilot, the aircraft was in cruise flight at 13,000 feet above mean sea level (msl) when engine power gradually deteriorated. The pilot said he used carburetor heat, switched tanks, and tried different mixture settings. He said the engine control inputs had no effect and the engine lost all power. A forced landing was conducted in a snow covered field beside U. S. highway 50. An examination of the aircraft fuel, fuel system, air system, engine, and carburetor was conducted and no abnormalities were found. Outside air temperature at 13,000 feet msl at the time was approximately minus 2 degrees Fahrenheit. According to the pilot, he had a similar experience in the same aircraft and area in July 1995, and landed the aircraft without damage.

Probable Cause and Findings

Loss of engine power for undetermined reason(s). The lack of suitable terrain for a forced landing was a related factor.

 

Source: NTSB Aviation Accident Database

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