U-FITAQP: 12) LOSS OF SPEED AWARENESS

Lancair Super ES | N18BG

Oshkosh, Wisconsin

  • DTSB analysis published
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Key facts

  • DateJuly 22, 2024
  • Local time12:10 PM
  • LightDay
  • WeatherVMC
  • Phase of flightApproach
  • People on board2
  • Fatalities2
  • AirportKOSH
  • NTSB numberCEN24FA277
  • NTSB statusUnder investigation

Accident Location

City, State
Oshkosh, Wisconsin
Latitude
43.94234
Longitude
-88.55685
Airport ID
KOSH

Aircraft Info

N Number
N18BG
Make
Lancair
Model
Super ES
Category / Class
Aircraft Single Engine Land
Amateur Built
Yes

Pilot Info

Pilot in command
Tommervik, Sean
Gender
Male
Age
37
Certification
Airline Transport Pilot
IFR rating
Yes
Medical
2nd Class Medical
Flight school
No
Instructional flight
No

Analysis

Weather
VMC
Time of day
Day
Phase of flight
Approach
Pilot error
Yes
Pilot incapacitation
No
People on board
2
PIC fatality
1
Passenger fatalities
1
Total fatalities
2
NTSB number
CEN24FA277
NTSB travel
Unknown

Probable Cause

THE DTSB

The DTSB determines the Probable Cause of this accident to be Pilot Error, in that the pilot did allow ATC local control to fly his aircraft for him, issuing both low assigned speed instructions, as well as sudden and unusual path instructions that caused him to both over bank and pull at a very low speed. The pilot was an air traffic controller from Texas and wanted to comply with every ATC instruction, and likely lost situational awareness of the dire speed. altitude, and bank angle corner that he had been forced in to. The blame for the accident rests with the pilot, but FAA also shares a documented culpability in creating the unsafe and non standard ATC environment as well.

NTSB

None yet (final report not yet published).

Recommendation

THE DTSB

The DTSB recommends that all pilots of all aircraft disregard ATC instructions at any airport, but especially Airventure, where abrupt, low speed, low altitude, last second maneuvering is required, and where ATC routinely uses language such as “tighten it up”, “keep it coming”, “one turn to final”, “add power” “put it down”, etc. All pilots should recognize such commands as non standard and refuse to comply, using phraseology such as “Negative. I will fly a standard pattern and stabilized approach.” The DTSB recommends that pilots not fly in to EAA Airventure until the obvious unsafe, cowboy, non standard screaming from ATC is eliminated and a better plan is published. To date, FAA has not indicated any new changes to the Air Venture arrival procedure for 2025. The DTSB highly recommends not flying in to Airventure and utilizing alternate airports, or driving in for those that desire to attend.

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