Aviation Accident Summaries

Aviation Accident Summary ATL95LA156

MCKENZIE, TN, USA

Aircraft #1

N26774

BEECH A36

Analysis

THE PILOT WAS ATTEMPTING A TAKEOFF TO THE NORTH ON THE 2,200 FOOT SOD AIRSTRIP. THE WIND WAS REPORTED TO BE FROM 150 DEGREES AT 5 KNOTS, AND THE TEMPERATURE WAS 33 DEGREES CELSIUS. THE DENSITY ALTITUDE AT THE TIME OF THE ACCIDENT WAS 2,822 FEET. THE AIRCRAFT WEIGHT WAS ESTIMATED TO BE 122 POUNDS OVER THE MAXIMUM GROSS TAKEOFF WEIGHT FOR THE AIRCRAFT. THE AIRCRAFT PILOT'S OPERATING HANDBOOK SHOWED THE MINIMUM DISTANCE REQUIRED TO CLEAR A 50 FOOT OBSTACLE FOR THESE CONDITIONS TO BE IN EXCESS OF 3,000 FEET. WITNESSES STATED THAT THE AIRCRAFT NEVER CLIMBED OVER 12 FEET ABOVE THE GROUND AFTER LIFTOFF. THE AIRCRAFT IMPACTED THE TREES AT THE DEPARTURE END OF THE RUNWAY.

Factual Information

On August 12, 1995, at 1430 central daylight time, a Beech 36-A36, N26774, was substantially damaged following a collision with trees during an attempted takeoff from a private sod airstrip near McKenzie, Tennessee. The personal flight was being operated under the provisions of 14 CFR Part 91 with no flight plan filed. Visual meteorological conditions prevailed at the time of the accident. The pilot and one passenger received serious injuries, and the other three passengers were not injured. Witnesses reported that the airplane attempted to depart the 2,200 foot long sod runway to the north. They said that the aircraft only climbed to about 12 feet above the ground during the attempted departure. The aircraft collided with trees on the departure end of the runway. The nearest weather reporting facility recorded an ambient temperature of 94 degrees, and the wind out of 150 degrees at 5 knots, at the time of the accident. The density altitude at the time of the accident was 2,822 feet. The aircraft weight at the time of the accident is estimated to be approximately 3,772 pounds.(See Federal Aviation Inspector's Statement Attached to this Report.) The maximum gross weight for takeoff for the Beech BE-36-A36 is listed as 3,650 pounds. With the density altitude, downwind takeoff condition, and aircraft weight of the flight, the aircraft Pilot's Operating Handbook shows the required takeoff distance to clear a 50 foot obstacle to be in excess of 3,000 feet. The pilot failed to complete a Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1/2, when requested to do so.

Probable Cause and Findings

The pilot's failure to comply with the performance data for the aircraft in his attempt to takeoff, downwind, from the short sod runway, with high density altitude, and with the aircraft weight in excess of the maximum gross weight allowed.

 

Source: NTSB Aviation Accident Database

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