Laseure Sonerai II accident near Grantsburg, WI
On April 22, 2009, a Laseure Sonerai II (airplane) was involved in an accident near Grantsburg, WI. 1 person died. Damage to the aircraft: destroyed.
- Date
- April 22, 2009
- Place
- Grantsburg, WI
- Aircraft
- Laseure Sonerai II · Airplane
- Injuries
- 1 fatal, 0 serious, 0 minor
- Damage
- Destroyed
- Position
- 45.684°N, 92.687°W
- NTSB ID
- 20090423X40825
Official records · CEN09LA263
- Public docket: reports, statements and exhibits from the investigation
NTSB summary
On April 22, 2009, at 1400 central daylight time, an amateur-built experimental Laseure Sonerai II, N232PE, was destroyed by collision with the terrain and a post impact fire after takeoff from the Circle T private airstrip (WS77), near Grantsburg, Wisconsin. The private pilot, the sole occupant, received fatal injuries. The 14 Code of Federal Regulations Part 91 personal flight was departing from WS77 on a local flight at the time of the accident. Visual meteorological conditions prevailed at the time of the accident, and no flight plan was filed. A witness reported that the he heard the pilot “throttling” or revving the airplane’s engine to high RPM’s prior to takeoff. The witness stated that the engine sounded like it was missing on two of the four cylinders initially, and then it sounded like the third cylinder “kicked in” while the pilot was taxiing the airplane. He stated, “It sounded like the engine had a stuck valve and was not running right.” He heard the airplane taxiing up and down the runway numerous times. He stated that it sounded like three of the four cylinders were working when the airplane departed to the west. The airplane lifted off the ground and made a left turn directly over his house, clearing it by 80 feet. He stated that the pilot would normally fly straight past his house for another 300 – 500 yards before starting a turn. He stated that while the airplane was still in the left turn, the airplane’s wings dipped to the right, and then the wings dipped to the left “real hard.” The airplane rolled inverted so that the witness could see the airplane’s
Probable cause
The pilot's failure to maintain airspeed during initial climb which resulted in a stall/spin. Contributing to the accident was the degraded engine performance.
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Source: NTSB aviation accident database (US government, public domain). Findings may be preliminary or later revised by the NTSB. Not a complete global record.
