Aviation Accident Summaries

Aviation Accident Summary FTW98LA115

STEAMBOAT SPRNG, CO, USA

Aircraft #1

N2804Y

Cessna 182E

Analysis

Shortly after takeoff, the engine lost power. The pilot reversed course and applied carburetor heat. With little altitude remaining and failing to restore engine power, the pilot made a forced landing in a snow field and the airplane nosed over. During the preflight inspection, the pilot found no water or contaminants in the fuel sumps. No irregularities were noted during the pretakeoff engine run. Full power was attained during the takeoff roll, and performance was typical for the conditions. The pilot told an FAA inspector that ice may have formed in the carburetor. At the time of the accident, the temperature at Hayden, Colorado, located 18 miles west of the accident site, was 25 degrees F., and the dew point 12 degrees F. According to the Icing Probability Chart, these conditions are not conducive to carburetor icing. The engine was later functionally tested. During the test, the temperature was 24 degrees F., and the dew point was 20 degrees F. The engine operated satisfactorily. After the engine was shut down, thick frost was noted on the carburetor housing. According to the Icing Probability Chart, these conditions are conducive to carburetor icing at cruise power and during a glide.

Factual Information

On January 30, 1998, at 1328 mountain standard time, a Cessna 182E, N2804Y, owned and operated by the pilot, was substantially damaged when it collided with terrain during a forced landing near Steamboat Springs, Colorado. The private pilot, the only occupant aboard, was not injured. Visual meteorological conditions prevailed, and no flight plan was filed for the personal flight conducted under Title 14 CFR Part 91. The flight originated at Steamboat Springs approximately 1325. According to the pilot's accident report, she took off on runway 32 at the Steamboat Springs/Bob Adams STOLport and proceeded northbound. During the climb at an altitude between 500 and 700 feet, the engine lost power. The pilot reversed course and applied carburetor heat. With little altitude remaining and failing to restore engine power, the pilot made a forced landing in a snow field, going uphill. The airplane nosed over after touching down, sustaining wing spar, keel, and nose damage. The pilot noted that during her preflight inspection, she found no water or contaminants in the fuel sumps. No irregularities were noted during the pretakeoff engine run. Full power was attained during the takeoff roll, and performance was typical for the conditions. She told an FAA inspector that she thought ice had formed in the carburetor. At the time of the accident, the temperature at Hayden, Colorado, located 18 miles west of the accident site, was 25 degrees F., and the dew point 12 degrees F. According to the Icing Probability Chart, these conditions are not conducive to carburetor icing. The engine was test run at the facilities of Beegles Aircraft Service, Greeley, Colorado, on February 4, 1998. The temperature at the airport was 24 degrees F., and the dew point was 20 degrees F. The engine operated satisfactorily. After the engine was shut down, thick frost was noted on the carburetor housing. According to the Icing Probability Chart, these conditions are conducive to carburetor icing at cruise power and during a glide.

Probable Cause and Findings

The total nonmechanical power loss due to the formation of carburetor ice. A factor was the deep snow covered field on which the forced landing was made.

 

Source: NTSB Aviation Accident Database

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