Sunday, January 30, 2022

Unknown or Undetermined: Pulsar Sport 150, N997EM; accident occurred August 09, 2021 near L. O. Simenstad Municipal Airport (KOEO), Osceola, Polk County, Wisconsin















Aviation Accident Factual Report - National Transportation Safety Board

The National Transportation Safety Board did not travel to the scene of this accident. 

Additional Participating Entity: 
Federal Aviation Administration / Flight Standards District Office; Minneapolis–Saint Paul, Minneapolis

Investigation Docket - National Transportation Safety Board:


Location: Osceola, Wisconsin 
Accident Number: CEN21LA367
Date and Time: August 9, 2021, 18:00 Local
Registration: N997EM
Aircraft: Pulsar Sport 150 
Aircraft Damage: Substantial
Defining Event: Unknown or undetermined 
Injuries: 1 Minor
Flight Conducted Under: Part 91: General aviation - Personal

Factual Information

On August 9, 2021, about 1800 central daylight time, a Pulsar Sport 150 airplane, N997EM, was substantially damaged when it was involved in an accident near Osceola, Wisconsin. The pilot received minor injuries. The airplane was operated as a Title 14 Code of Federal Regulations Part 91 personal flight.

The pilot reported that he flew for 0.8 hours before taking a break. He then added 11.6 gallons of fuel to the airplane and planned to stay in the traffic pattern. He departed the L O Simenstad Municipal Airport (OEO), Osceola, Wisconsin, and did one touch-and-go. During the climb the airplane’s engine lost total power. The pilot selected a field, located slightly ahead and to the right, for the forced landing. During the forced landing the airplane impacted terrain and came to rest upright.

The airplane sustained substantial damage to the fuselage, and both wings separated from the airframe during the landing.

The airplane wreckage was recovered and transported to a salvage facility where an examination was conducted. The fuselage with the engine, minus the wings, was placed on a stand for the examination. 

The engine cowling had been previously removed and a visual inspection of the engine did not reveal any pre-impact abnormities. However, a wire to the E-mag (left side) was disconnected; it could not be determined if this was a result of the accident or the forced landing. The magneto was removed and tested by rotating the magneto with a drill; spark was observed on each terminal. Spark was also observed on each terminal of the right magneto. The carburetor had impact damage, which prevented an engine test run. The examination of the engine and fuel system did not reveal a reason for the loss of engine power.

Pilot Information

Certificate: Private
Age: 68
Airplane Rating(s): Single-engine land 
Seat Occupied: Left
Other Aircraft Rating(s): None
Restraint Used:
Instrument Rating(s): None 
Second Pilot Present: No
Instructor Rating(s): None 
Toxicology Performed:
Medical Certification: Unknown, Unknown 
Last FAA Medical Exam: October 28, 2019
Occupational Pilot: No
Last Flight Review or Equivalent: November 5, 2019
Flight Time: 470.3 hours (Total, all aircraft), 157 hours (Total, this make and model), 398.4 hours (Pilot In Command, all aircraft), 16.4 hours (Last 90 days, all aircraft), 11.3 hours (Last 30 days, all aircraft), 1.1 hours (Last 24 hours, all aircraft)

Aircraft and Owner/Operator Information

Aircraft Make: Pulsar Sport 
Registration: N997EM
Model/Series: 150 
Aircraft Category: Airplane
Year of Manufacture: 2014 
Amateur Built: Yes
Airworthiness Certificate: Experimental (Special)
Serial Number: 603
Landing Gear Type: Tricycle 
Seats: 2
Date/Type of Last Inspection: October 22, 2020 Condition 
Certified Max Gross Wt.:
Time Since Last Inspection: 
Engines: 1 Reciprocating
Airframe Total Time: 238.2 Hrs at time of accident
Engine Manufacturer: Continental
ELT: C126 installed, activated, did not aid in locating accident
Engine Model/Series: O-200A
Registered Owner: 
Rated Power: 100 Horsepower
Operator: On file 
Operating Certificate(s) Held: None

Meteorological Information and Flight Plan

Conditions at Accident Site: Visual (VMC)
Condition of Light: Day
Observation Facility, Elevation: 
Distance from Accident Site:
Observation Time: 22:55 Local
Direction from Accident Site:
Lowest Cloud Condition: Clear 
Visibility: 10 miles
Lowest Ceiling: 
Visibility (RVR):
Wind Speed/Gusts: /
Turbulence Type Forecast/Actual:  /
Wind Direction: 
Turbulence Severity Forecast/Actual:  /
Altimeter Setting: 29.84 inches Hg 
Temperature/Dew Point: 29°C / 20°C
Precipitation and Obscuration: No Obscuration; No Precipitation
Departure Point: Osceola, WI 
Type of Flight Plan Filed: None
Destination: Osceola, WI
Type of Clearance: None
Departure Time:
Type of Airspace:

Airport Information

Airport: L O Simenstad Municipal KOEO
Runway Surface Type: Asphalt
Airport Elevation: 906 ft msl 
Runway Surface Condition: Dry
Runway Used: 10
IFR Approach: None
Runway Length/Width: 5006 ft / 75 ft 
VFR Approach/Landing: Forced landing

Wreckage and Impact Information

Crew Injuries: 1 Minor 
Aircraft Damage: Substantial
Passenger Injuries:
Aircraft Fire: None
Ground Injuries: 
Aircraft Explosion: None
Total Injuries: 1 Minor
Latitude, Longitude: 45.307962,-92.683907(est)


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