- Date
- August 29, 2011, 09:30 local (14:30 UTC)
- Place
- Windom, MN
- Injuries
- 1 minor
- Damage
- Substantial damage
- Phase of flight
- Takeoff
- Aircraft
- N73712Van's RV-12
- Defining event
- Takeoff: Sys/Comp malf/fail (non-power)
- Weather
- Visual (VMC) · Day
- Status
- Completed · report March 20, 2012
- Report
- Approved by Office Director
- NTSB office
- Central Region
- Parties
- Federal Aviation Administration, Minneapolis FSDO
- FAA report
- 20110829019779A
- Case key
- 81624
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.
On this page
Probable cause
The pilot's loss of airplane control after liftoff due to his distraction with the unsecured canopy, which he did not lock before takeoff.
Findings · 5
NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.
Sequence of events
The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.
Analysis
The pilot reported that he inadvertently did not secure the canopy latch after entering the cabin. After liftoff, he noticed air entering the cockpit from the unsecured canopy. He stated that he was distracted with securing the canopy as the airplane descended toward the runway. The airplane collided with the runway as he attempted to reestablish a level flight attitude. The airplane subsequently slid off the right side of the runway into a soybean field. The pilot reported that there were no preimpact mechanical malfunctions or failures that would have precluded the normal operation of the airplane. Additionally, he stated that the accident could have been prevented had he focused on flying the airplane instead of attempting to secure the unlatched canopy.
Factual narrative
On August 29, 2011, at 0930 central daylight time, a Van's Aircraft RV-12 experimental light-sport airplane, N73712, was substantially damaged when it collided with the runway shortly after takeoff from Windom Municipal Airport (KMWM), Windom, Minnesota. The pilot sustained minor injuries. The airplane was registered to and operated by the private pilot under the provisions of 14 Code of Federal Regulations Part 91. Day visual meteorological conditions prevailed for the flight, which was operated without a flight plan. The local flight was originating at the time of the accident. The pilot reported that he inadvertently did not secure the canopy latch after entering the cabin. After liftoff he noticed air entering the cockpit from the unsecured canopy. He stated that he was distracted with securing the canopy as the airplane inadvertently descended toward the runway. The airplane collided with the runway as he attempted to reestablish a level flight attitude. The airplane subsequently slid off the right side of the runway into a soybean field. The fuselage, wings, firewall, and empennage sustained substantial damage during the ground collision. The pilot reported that there were no preimpact mechanical malfunctions or failures that would have precluded the normal operation of the airplane. Additionally, he stated that the accident could have been prevented had he focused on flying the airplane instead of attempting to secure the unlatched canopy.
Aircraft
- Registration
- N73712
- Reported as
- Van's RV-12
- Category
- Airplane
- Serial number
- 120034
- Airframe hours
- 101
- Engine
- Rotax 912 ULS, 100 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Personal · Part 91
- Airworthiness certificate
- Special, Experimental light sport (Special)
- Last inspection
- Condition · October 21, 2010
- Departed
- KMWM · Windom, MN
- Destination
- KMWM · Windom, MN
- Airport
- KMWM · Windom Municipal Airport, runway 17, 3,599 × 75 ft, asphalt
Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.
Flight crew
As NTSB recorded them. NTSB leaves out names.
- Role
- Pilot
- Age
- 76
- Injuries
- Minor
- Certificate
- Commercial
- Airplane ratings
- Single-engine land
- Instrument ratings
- Airplane
- Medical
- Sport pilot
- Last flight review
- October 20, 2009
- Seat
- Left
- Flight hours
- 3,986 total · 154 in this make and model · 3,903 as pilot in command · 41 in the last 90 days · 15 in the last 30 days · 0 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 190° at 5 knots
- Visibility
- 10 statute miles
- Lowest ceiling
- None
- Temperature
- 66 °F, dew point 63 °F
- Altimeter
- 30.05 inHg
- Observed at
- KMWM
Docket · 4
The files NTSB released with the investigation on February 8, 2012, on NTSB’s docket system: statements, records, photos and specialists’ reports. 613 KB in all.
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.