NTSB Identification: CHI96FA330.
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Accident occurred Wednesday, September 04, 1996 in OXFORD, IA
Probable Cause Approval Date: 08/21/1997
Aircraft: Green Castle AVID FLYER AEROBAT, registration: N95GC
Injuries: 1 Fatal,1 Serious.

NTSB investigators either traveled in support of this investigation or conducted a significant amount of investigative work without any travel, and used data obtained from various sources to prepare this aircraft accident report.

A flight instructor (CFI) and a private pilot were beginning a local instructional flight. They initiated a takeoff on runway 15, which contained a 90' wide sod area and a 24' wide asphalt area. A witness reported that [after lift-off], he observed the airplane 'banking into a turn, low to the ground, with its tail very low.' The private pilot reported that they 'were having trouble gaining enough airspeed and barely cleared the trees after takeoff.' He said the CFI assumed control of the airplane, and that they 'continued having trouble getting the proper amount of airspeed.' The next thing he remembered was 'the ground coming at them.' The private pilot did 'not recall hearing the engine miss.' According to operator personnel, the airplane stalled and 'spun' to the ground about 1/2 mile south of the runway. Examination of the accident site revealed the airplane crashed on slightly rising terrain. Corn stalks in the impact area were sliced at a descending angle, leading to a shallow impact crater. No preimpact flight control or engine control malfunction was discovered. The engine operated normally, when tested.

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

failure of the private pilot to maintain sufficient airspeed after takeoff, during the initial climb and turn to the crosswind leg; and a delay by the flight instructor (CFI) in taking remedial action to avoid a stall.

Full narrative available

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