On October 17, 2007, a Beech A36 (registration N978TL) was involved in an aviation accident near Glenpool, OK. Investigators recorded the probable cause as: The pilot's failure to maintain control of the airplane after departure, which resulted in a collision with power lines. A factor was the high winds. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive.
A private pilot, after borrowing an airplane and fueling it, departed with four passengers. Witnesses reported difficulty climbing. The airplane struck unmarked power lines, caught fire, and burned. Examination found no mechanical deficiencies.
Background
The pilot involved in the accident held a private pilot certificate and was operating a borrowed airplane. Prior to departure on a cross-country flight with four passengers, the pilot filled the fuel tanks to capacity. The pilot also obtained a weather briefing that indicated high winds were present at the departure airport and moderate turbulence was forecast along the intended route.
Accident Sequence
After takeoff, multiple witnesses observed the airplane struggling to gain altitude and maintain control. The airplane then struck a row of unmarked power lines situated approximately 3.4 miles south of the runway. The collision caused the airplane to catch fire, after which it fell to the ground and continued to burn.
Post-Accident Investigation
An estimated weight and balance calculation was performed. The airplane's weight was determined to be about 130.5 pounds below the published maximum gross weight of 3,600 pounds. The center of gravity was within the allowable range for takeoff but was slightly aft of the limits for landing at the intended destination. A thorough examination of the engine and airframe found no mechanical deficiencies or failures. The propeller blades exhibited damage consistent with rotation under high power at the time of impact.