Aviation Accident Summaries

Aviation Accident Summary ANC96LA067

DILLINGHAM, AK, USA

Aircraft #1

N1828C

Cessna 170

Analysis

After completing a fish spotting flight, the pilot landed the airplane at the Dillingham Airport. While taxiing back from landing, the pilot applied the brakes. During the deceleration, a tire rotated on the rim shearing the valve stem. The tire and portions of the rim separated from the landing gear and the airplane's wingtip dragged the ground. The airplane was equipped with 8:50 size tires.

Factual Information

On May 1, 1996, at 1200 Alaska daylight time, a wheel equipped Cessna 170 airplane, N1828C, registered to and operated by the pilot, lost a tire while taxiing after landing and dragged a wingtip at the Dillingham Airport, Dillingham, Alaska. The business flight, operating under 14 CFR Part 91 for the purpose of fish spotting, departed Togiak, Alaska, and the destination was Dillingham. No flight plan was filed and visual meteorological conditions prevailed. The certificated commercial pilot, the sole occupant, was not injured and the airplane received substantial damage. During a telephone conversation with the pilot on May 4, 1996, he stated that after landing, while taxiing to the ramp and applying the brakes, the tire rotated on the rim and sheared off the valve stem. The tire and rim then separated from the landing gear and the wingtip dragged the ground. According to the NTSB form 6120.1/2, submitted by the pilot, he stated that the bonding failed and the rim separated. He did not submit the rim for examination. The airplane was equipped with 8:50 size tires.

Probable Cause and Findings

rotation (slippage) of the tire on the rim, and shearing of the valve stem, which allowed the rim to contact the ground and then separate.

 

Source: NTSB Aviation Accident Database

Get all the details on your iPhone or iPad with:

Aviation Accidents App

In-Depth Access to Aviation Accident Reports