N2540F American Champion Aircraft 7GCAA accident

NTSB GAA17CA115 · 2017-01-16 · Bainbridge, GA · near BGE

Docket — crew, injuries and powerplant

Summary

The solo student pilot in a tailwheel-equipped airplane reported that he had completed five touch-and-go landings and maneuvers in the local area before returning for a full-stop landing. While on final approach about 50 ft above ground, he reduced throttle to idle and allowed the airspeed to slow, and the left wing dropped abruptly. The left main landing gear touched down on the runway, the airplane veered to the left into grass, and it then nosed over. The left wing lift strut and the rudder sustained substantial damage. The student pilot reported that there were no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation. The student pilot failed to submit the National Transportation Safety Board Form 6120.1 Pilot/ Operator Aircraft Accident/ Incident Report.

Full narrative

The solo student pilot in a tailwheel-equipped airplane reported that he had completed five touch-and-go landings and maneuvers in the local area before returning for a full stop landing. He reported that while on final approach about 50 feet above ground, he reduced throttle to idle, allowed the airspeed to slow, and the left wing dropped abruptly. The left main landing gear touched down on the runway, the airplane veered to the left into grass, and nosed over.

The left wing lift strut and the rudder sustained substantial damage.

The student pilot did not report any preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation.

The student pilot failed to submit the National Transportation Safety Board Form 6120.1 Pilot/ Operator Aircraft Accident/ Incident Report.

Probable cause

The student pilot's exceedance of the airplane’s critical angle of attack during final approach, which resulted in an aerodynamic stall, and his subsequent loss of directional control after touchdown. The National Transportation Safety Board determined the probable cause of this accident.

Circumstances

Event type
Accident
Highest injury
None
Weather conditions
Visual Meteorological Cond
Light condition
Day
Sky condition
BKN
Ceiling (ft)
6000
Visibility (sm)
10
Wind direction
130
Wind speed (kt)
3
Temperature (F)
61
Nearest airport
DECATUR COUNTY INDUSTRIAL AIR
Distance from field
0.0
Airport elevation
141

Aircraft

RegistrationMakeModelDamageFAR part
N2540F AMERICAN CHAMPION AIRCRAFT 7GCAA SUBS 091

Sequence of events

#OccurrencePhase
1 Landing-flare/touchdown Aerodynamic stall/spin defining Cruise
2 Landing-flare/touchdown Abnormal runway contact Cruise
3 Landing-landing roll Loss of control on ground Cruise
4 Landing-landing roll Runway excursion Cruise
5 Landing-landing roll Nose over/nose down Cruise
6 Landing-landing roll Collision with terr/obj (non-CFIT) Cruise

Findings

Finding
Personnel issues-Task performance-Use of equip/info-Aircraft control-Student/instructed pilot cause
Aircraft-Aircraft oper/perf/capability-Performance/control parameters-Angle of attack-Capability exceeded cause
Aircraft-Aircraft oper/perf/capability-Performance/control parameters-Directional control-Not attained/maintained cause