Thursday, April 20, 2017

Beech BE23, N786KS: Accident occurred April 19, 2017 at Darrow Field Airport (26NV), Fallon, Churchill County, Nevada

Additional Participating Entity:
Federal Aviation Administration / Flight Standards District Office; Reno, Nevada

Aviation Accident Final Report - National Transportation Safety Board: 

Investigation Docket National Transportation Safety Board:

Aviation Accident Data Summary - National Transportation Safety Board:

NTSB Identification: GAA17CA239
14 CFR Part 91: General Aviation
Accident occurred Wednesday, April 19, 2017 in Fallon, NV
Probable Cause Approval Date: 07/20/2017
Aircraft: BEECH C23, registration: N786KS
Injuries: 2 Uninjured.

NTSB investigators used data provided by various entities, including, but not limited to, the Federal Aviation Administration and/or the operator and did not travel in support of this investigation to prepare this aircraft accident report.

The pilot reported that two private airports were near each other, and he mistakenly landed at the wrong airport. He added that, once he realized his mistake, he referenced the Federal Aviation Administration (FAA) chart supplement and visual flight rules sectional chart and observed a published runway length of 2,600 ft for departure. The pilot reported that he referenced the Pilot’s Operating Handbook (POH) and noted that the calculated takeoff distance was 1,350 ft.

The pilot reported that, during the takeoff roll, he decided to abort the takeoff with about half of the runway remaining because the airplane had not reached the speed he expected. During the aborted takeoff, the airplane pulled to the left of the runway centerline “slightly” when the brakes were applied, and the left wing struck two fence posts along the runway. The collision with the fence posts pulled the airplane off the runway surface to the left and into a ditch and a barbed wire fence.

The left wing sustained substantial damage.

The pilot reported that there were no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation.

The FAA Aeronautical Information Services Office was asked by the National Transportation Safety Board investigator-in-charge to evaluate the published runway dimensions at the accident airport. Upon review, the FAA determined that the runway dimensions provided for the airport should have been 2,483 ft by 25 ft rather than 2,600 ft by 25 ft. The FAA submitted the revised dimensions to the National Flight Data Center for publication.    
According to takeoff performance calculations with the FAA Koch Chart, the airplane would have likely experienced a 60% increase to the normal takeoff distance. When factoring in this increase with the airplane’s POH takeoff distance chart, the ground roll required was about 1,808 ft, and the total distance to clear a 50-ft obstacle was 3,128 ft. Numerous trees were located at the end of the runway. The distance to clear the 50-ft obstacle exceeded the published runway length and revised runway length. 

The National Transportation Safety Board determines the probable cause(s) of this accident as follows:
The pilot's inaccurate takeoff performance calculations and failure to maintain directional control during an aborted takeoff.

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