What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
Observed circling field, descended, crashed into the fied, and burned. (.4)according to witnesses, the accident pilot reported on UNICOM that his 'flap bracket had broken.' A pilot who was on the ground near the accident site reported that he observed a 'violent flutter' on the right wing. Examination of the right flap revealed the inboard flap push rod was fractured at the end cap. The push rod welds exhibited 'porosity and secondary cracking indicative of poor welding techniques.' The inboard cruise flap push rod 'exhibited a thumbnail crack, which may have indicated failure by high stress, low cycle fatigue.' The outboard cruise flap hinge was fractured. Examination revealed the hinge was constructed entirely of composite material. The kit manufacturers drawings specify an aluminum core for the hinge. Differential scanning calorimetric analysis of the composite cruise flap skin revealed the vinyl ester matrix material was 'not fully cured.' (-23) on June 3, 1996, N7033G, a currus vk 30 amateur homebuilt aircraft piloted by Mr. Alfred y. corey, departed Lapeer airport (D95) at approximately 14:15 EDT. The aircraft crashed at approximately 14:41 EDT, 9 miles north of D95, resulting in one fatality. The aircraft was destroyed.
As the FAA filed it
OBSERVED CIRCLING FIELD, DESCENDED, CRASHED INTO THE FIED, AND BURNED. (.4)ACCORDING TO WITNESSES, THE ACCIDENT PILOT REPORTED ON UNICOM THAT HIS 'FLAP BRACKET HAD BROKEN.' A PILOT WHO WAS ON THE GROUND NEAR THE ACCIDENT SITE REPORTED THAT HE OBSERVED A 'VIOLENT FLUTTER' ON THE RIGHT WING. EXAMINATION OF THE RIGHT FLAP REVEALED THE INBOARD FLAP PUSH ROD WAS FRACTURED AT THE END CAP. THE PUSH ROD WELDS EXHIBITED 'POROSITY AND SECONDARY CRACKING INDICATIVE OF POOR WELDING TECHNIQUES.' THE INBOARD CRUISE FLAP PUSH ROD 'EXHIBITED A THUMBNAIL CRACK, WHICH MAY HAVE INDICATED FAILURE BY HIGH STRESS, LOW CYCLE FATIGUE.' THE OUTBOARD CRUISE FLAP HINGE WAS FRACTURED. EXAMINATION REVEALED THE HINGE WAS CONSTRUCTED ENTIRELY OF COMPOSITE MATERIAL. THE KIT MANUFACTURERS DRAWINGS SPECIFY AN ALUMINUM CORE FOR THE HINGE. DIFFERENTIAL SCANNING CALORIMETRIC ANALYSIS OF THE COMPOSITE CRUISE FLAP SKIN REVEALED THE VINYL ESTER MATRIX MATERIAL WAS 'NOT FULLY CURED.' (-23) ON JUNE 3, 1996, N7033G, A CURRUS VK 30 AMATEUR HOMEBUILT AIRCRAFT PILOTED BY MR. ALFRED Y. COREY, DEPARTED LAPEER AIRPORT (D95) AT APPROXIMATELY 14:15 EDT. THE AIRCRAFT CRASHED AT APPROXIMATELY 14:41 EDT, 9 MILES NORTH OF D95, RESULTING IN ONE FATALITY. THE AIRCRAFT WAS DESTROYED.
NTSB investigation
The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.