Aviation Accident Summaries

Aviation Accident Summary FTW95LA256

HEARNE, TX, USA

Aircraft #1

N4537L

AIR TRACTOR AT-401

Analysis

THE ENGINE LOST POWER DURING THE INITIAL TAKEOFF CLIMB FROM AN AGRICULTURAL AIRSTRIP. THE PILOT'S VISION WAS RESTRICTED BY THE OIL COVERING THE WINDSHIELD. ACCORDING TO THE OPERATOR, DURING THE FORCED LANDING TO A COTTON FIELD, THE AIRPLANE LANDED HARD AND CONTROL WAS LOST. POST ACCIDENT EXAMINATION OF THE ENGINE BY THE OPERATOR REVEALED THAT THE LOSS OF ENGINE POWER WAS THE RESULT OF THE FAILURE OF THE NUMBER TWO CYLINDER.

Factual Information

On June 21, 1995, at 1125 central daylight time, an Air Tractor AT-401, N4537L, was destroyed during a forced landing near Hearne, Texas. The commercial pilot was not injured. Visual meteorological conditions prevailed for the aerial application flight. According to the operator, the engine lost power during initial takeoff climb while departing an agricultural airstrip with a load of pesticides. He added that the pilot's windshield was covered with engine oil restricting the pilot's vision. He further stated that the airplane landed hard in a cotton field, followed by a loss of control. Post accident examination of the engine by the operator revealed that the loss of engine power was due to the failure of the number two cylinder.

Probable Cause and Findings

THE LOSS OF ENGINE POWER AS RESULT OF THE FAILURE OF THE NUMBER TWO CYLINDER. FACTORS WERE THE UNSUITABLE TERRAIN AVAILABLE FOR THE FORCED LANDING AND THE PILOT'S RESTRICTED VISION DUE TO OIL ON THE WINDSHIELD.

 

Source: NTSB Aviation Accident Database

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