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N82BP accident description

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Crash location Unknown
Nearest city Georgetown, TX
30.632694°N, 97.677231°W
Tail number N82BP
Accident date 14 Jan 1998
Aircraft type Poling Keleher Lark KR1B
Additional details: None

NTSB Factual Report

On January 14, 1998, about 1500 central standard time, a Poling Keleher Lark KR1B experimental airplane, N82BP, owned and operated by the pilot as a Title 14 CFR Part 91 personal flight, was destroyed during a collision with terrain, near Georgetown, Texas. Visual meteorological conditions prevailed, and a flight plan was not filed. The private pilot, sole occupant of the airplane, was fatally injured. The local flight originated from the Kittie Hill Airport, Leander, Texas, about 1430.

Witnesses observed the aircraft takeoff. A search was initiated after the airplane failed to return. The aircraft was located the following morning in a field 6 miles west of Georgetown near Highway 29.

Examination of the aircraft wreckage by FAA inspectors revealed that the engine was embedded in the ground at a measured 40 degree angle. The right wing's leading edge was crushed aft. The left wing's leading edge did not have aft crushing. One blade of the wooden propeller was still attached to the engine and was embedded in the ground with a 12 inch piece separated from its tip. This separated piece of blade was found laying near the engine. The other propeller blade was separated from the hub and broken into several pieces, which were found under the engine.

Flight control continuity was established to the aileron and rudder surfaces. Control continuity was not established to the elevator due to the push pull tube being separated from the elevator control attachment fitting; however, no evidence was observed that would indicate that it had separated prior to ground impact.

The engine was examined after the aircraft was recovered from the accident site. No discrepancies were found with the engine that would have prevented normal operation. See enclosed report from the engine manufacturer's representative.

An autopsy was performed by Roberto J. Bayardo, M.D., Office for the Medical Examiner of Travis County, Austin, Texas. There was no evidence of any preexisting disease that could have contributed to the accident.

Toxicology findings were positive for Chlorpeniramine 0.038 (ug/ml, ug/g) detected in blood and 0.095 (ug/ml, ug/g) in liver fluid, and Brompheniramine 0.095 (ug/ml, ug/g) detected in liver fluid. Both of these drugs are antihistamines and according to Dr. Canfield, Civil Aeromedical Institute (CAMI), they were found at "therapeutic levels, which may have caused impairment." In addition, "the underlying medical condition for which these drugs were being taken may have caused discomfort or a distraction in the cockpit. The Pseudoephedrine and Phenylpropanolamine (decongestants) may not be significant." According to Drug Facts & Comparisons, "antihistamines have varying degrees of sedative effects and may cause drowsiness and reduce mental alertness; patients should not drive or perform other tasks requiring alertness, coordination or physical dexterity." See the enclosed extracts from Drug Facts & Comparisons.

NTSB Probable Cause

The pilot's failure to maintain aircraft control. A contributing factor was the pilot's physical impairment due to drugs.

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