Aviation Accident Summaries

Aviation Accident Summary CHI98LA109

WHITEWOOD, SD, USA

Aircraft #1

N9140C

Cessna 180

Analysis

The pilot reported he was flying between cloud layers at 7,500 feet msl, when the airplane started to accumulate airframe ice. He reversed his direction to return to Spear Fish, South Dakota, but the weather continued to deteriorate. He decided to make an off-airport landing in a field. The pilot reported that he circled the field two times. On the third pass, while on final approach, the airplane contacted the lower line of a dual set of wires. The airplane then nosed down and impacted the terrain prior to nosing over inverted.

Factual Information

On March 28, 1998, at 1225 mountain standard time, a Cessna 180, N9140C, operated by commercial instrument pilot collided with electrical wires followed by the terrain while attempting an off airport landing in Whitewood, South Dakota. The pilot was not injured and the airplane was substantially damaged. The 14 CFR Part 91 flight was operating in instrument meteorological conditions without a flight plan. The flight originated from Spear Fish, South Dakota, at 1155 mst, with an intended destination of Walker, Minnesota. The pilot reported to an inspector from the Rapid City, South Dakota, Federal Aviation Administration Flight Standards District Office (FSDO) that he was flying between cloud layers at 7,500 feet above mean sea level when the airplane started to pick up ice. He reversed his direction to return to Spear Fish, South Dakota, but the weather continued to deteriorate at which time he decided to make an off airport landing in a field. The pilot reported that he circled the field two times. On the third pass, while on final approach, the airplane contacted the lower line of a dual set of wires. According to the FSDO inspector, the airplane nosed down and impacted the terrain prior to nosing over inverted.

Probable Cause and Findings

failure of the pilot to maintain clearance from obstructions (wires) during an approach for a precautionary landing. Factors associated with the accident were: the pilot's inadequate evaluation of the weather conditions, low ceilings, icing conditions, and the wires which were contacted.

 

Source: NTSB Aviation Accident Database

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