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ASN Wikibase Occurrence # 196473
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Type:Silhouette image of generic FDCT model; specific model in this crash may look slightly different    
Flight Design CTSW
Owner/operator:Mooney of Monticello, Inc.
Registration: N62JN
MSN: 06-01-09
Fatalities:Fatalities: 1 / Occupants: 1
Other fatalities:0
Aircraft damage: Substantial
Location:Monticello Regional Airport (KMXO), Monticello, IA -   United States of America
Phase: Landing
Departure airport:Monticello Regional Airport, IA (KMXO)
Destination airport:Monticello Regional Airport, IA (KMXO)
Investigating agency: NTSB
Confidence Rating: Accident investigation report completed and information captured
The commercial pilot was conducting a personal flight in the two-seat, light sport airplane with his dog in the right passenger seat. A witness, who was piloting another airplane in the traffic pattern, reported that, while he was on the downwind leg, he saw the accident airplane on final approach to the runway. The witness subsequently lost visual contact with the accident airplane as he turned his airplane onto the base leg. The witness did not see the accident airplane on the runway or taxiway after he turned onto final approach. The witness conducted a go-around and then saw the accident airplane in a cornfield adjacent to the runway. After the accident, the witness saw the pilot's dog running out of the cornfield where the airplane had crashed.

Based on available ground track and engine data, the airplane crossed the runway 27 threshold at a calculated airspeed of 48 knots. About 3 seconds later, the airplane turned right away from the runway heading, and the engine speed increased to takeoff power. The airplane subsequently descended right wing down into the cornfield about 250 ft north of the runway centerline. The final calculated airspeed was about 44 knots. Although the airplane's wings-level aerodynamic stall speed with the wing flaps fully extended was 39 knots, the stall speed would have increased exponentially with the bank angle as the airplane turned right.

According to the pilot's son, the pilot routinely flew with his dog, who weighed between 70 and 75 lbs. He added that the pilot had installed a homemade, removable, plywood device to prevent the right-seat passenger (or his dog) from inadvertently contacting the rudder pedals during flight. Although the device was not approved to be installed in the airplane, there was no evidence that it interfered with the full movement of either control stick or the pilot-side rudder pedals. Postaccident examination of the airplane and engine did not reveal any evidence of preimpact mechanical malfunctions or failures that would have precluded normal operation. Given the ground track and engine data, it is likely that the dog contacted the aileron and/or stabilator controls during landing, which resulted in the pilot's loss of airplane control and a subsequent aerodynamic stall at a low altitude when the airplane exceeded its critical angle of attack.

Probable Cause: The pilot's decision to fly with his large dog in the two-seat, light sport airplane, and the dog's likely contact with the flight controls during landing, which resulted in the pilot's loss of airplane control and a subsequent aerodynamic stall when the airplane exceeded its critical angle of attack.



Accident investigation:
Investigating agency: NTSB
Status: Investigation completed
Duration: 1 year and 9 months
Download report: Final report


Photo: NTSB

Revision history:

02-Jul-2017 18:11 Geno Added
03-Jul-2017 19:41 Geno Updated [Aircraft type, Registration, Cn, Operator, Source]
03-Jul-2017 20:59 Iceman 29 Updated [Nature, Source, Embed code, Damage, Narrative]
11-Apr-2019 12:16 Captain Adam Updated [Phase, Departure airport, Destination airport, Source, Embed code, Narrative]
15-Apr-2019 14:44 ASN Update Bot Updated [Time, Operator, Departure airport, Destination airport, Source, Embed code, Damage, Narrative, Accident report, ]
15-Apr-2019 19:43 harro Updated [Departure airport, Destination airport, Embed code, Narrative, Photo]

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