Aviation Accident Summaries

Aviation Accident Summary FTW93LA225

OSCEOLA, AR, USA

Aircraft #1

N4021C

STINSON 108-3

Analysis

DURING THE TAKEOFF INITIAL CLIMB, THE RIGHT HALF OF THE ENGINE COWLING CAME LOOSE. THE PILOT STATED TO THE INVESTIGATOR IN CHARGE THAT HE IMPROPERLY LATCHED THE COWLING ON THE PREFLIGHT. A TURN WAS INITIATED TOWARD THE AIRPORT AND ON A 45 DEGREE ANGLE TO THE RUNWAY THE AIRPLANE STALLED AND IMPACTED THE TERRAIN SHORT OF THE RUNWAY.

Factual Information

On August 1, 1993, at approximately 1300 central daylight time, a Stinson 108-3 airplane, N4021C, sustained substantial damage near Osceola, Arkansas, during approach. The private pilot and passenger were not injured. Visual meteorological conditions prevailed for the personal cross country flight. The Pilot/Operator report submitted to the Safety Board and a personal interview conducted by the investigator in charge revealed the following information. During a cross country flight a routine refueling stop was made at Osceola, Arkansas. As the air speed increased during the initial takeoff climb, the right half of the engine cowling came loose. The pilot observed the engine cowling chaffing against the windshield plexiglass. A 180 degree turn toward the airport was initiated by the pilot. During the approach, the airplane stalled and impacted the terrain short of the runway. The pilot stated that he had checked and filled the engine oil and had improperly latched the cowling during the preflight.

Probable Cause and Findings

INADVERTENT STALL. FACTORS WERE THE IMPROPER LATCHING OF THE ENGINE COWLING BY THE PILOT AND HIS INADEQUATE PREFLIGHT INSPECTION.

 

Source: NTSB Aviation Accident Database

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