- Date
- September 26, 1990, 15:00 local (20:00 UTC)
- Place
- Waukesha, WI
- Injuries
- 1 minor, 1 uninjured; on the ground: 1 minor
- Damage
- Substantial damage
- Phase of flight
- Landing
- Aircraft
- N912GBurkhart Grob 109A
- Weather
- Visual (VMC) · Day
- Status
- Completed · report November 9, 1992
- Report
- Approved by Office Director
- FAA report
- 19900926042479A
- Case key
- 14783
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 failure to maintain adequate clearance and visual lookout for the moving tractor.
Sequence of events
NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.
Analysis
The student pilot reported that he was landing to the north at an uncontrolled airport when the left wing of the motor glider airplane he was flying struck a tractor type lawm mower. He said that when he initially saw the mower it was about 80 feet from the runway. The next time that he saw it, it was approximately 3 feet from the runway's left edge. The operator of the mower said that he was driving the mower on the west side of the runway with his back to the approaching airplane. He did not see or hear the airplane until it hit the mower.
Aircraft
- Registration
- N912G
- Reported as
- Burkhart Grob 109A
- Category
- Airplane
- Serial number
- 6143
- Engine
- Limbach L2000EB1M, 80 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Instructional · Part 91
- Registered owner
- Arthur L. Daun, Jr.
- Departed
- HXF · Hartford, WI
- Airport
- O26 · Capital Drive, runway 3, 3,500 × 45 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
- 41
- Certificate
- Student
- Medical
- Class 3, Valid Medical--w/ waivers/lim
- Flight hours
- 87 total · 76 in this make and model
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 130° at 8 knots
- Visibility
- 8 statute miles
- Lowest ceiling
- None
- Temperature
- -0 °F, dew point -0 °F
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.