- Date
- July 25, 2024, 08:40 local (13:40 UTC)
- Place
- Oshkosh, WI · On Airport
- Injuries
- 2 uninjured
- Damage
- Substantial damage
- Phase of flight
- Landing
- Aircraft
- N52494Canadian Car & Foundry Harvard MK IV
- Defining event
- Landing-flare/touchdown: Loss of control on ground
- Weather
- Visual (VMC) · Day
- Status
- Completed
- Report
- Approved by Office Director
- Investigation class
- Class 4 - Basic report with no Prelim publish
- NTSB office
- Western Pacific Region
- Parties
- FAA
- Case key
- 194764
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 directional control during the landing roll, which resulted in a ground loop.
Findings · 3
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 of the tailwheel equipped airplane reported that he landed behind another airplane. During the landing roll, the airplane encountered “wake turbulence” and veered to the right. He applied power in an attempt to regain rudder authority and execute a go-around; however, the airplane exited the right side of the runway, ground looped, and the right wing struck the ground. The airplane sustained substantial damage to the right aileron. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.
Aircraft
- Registration
- N52494
- Reported as
- Canadian Car & Foundry Harvard MK IV
- Category
- Airplane
- Serial number
- CCF4-387
- Airframe hours
- 5,887.6
- Engine
- Prat & Witney R1340, 300 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Personal · Part 91
- Registered owner
- Navy Flight Trainer LLC
- Airworthiness certificate
- Special, Experimental (Special)
- Last inspection
- Condition · July 10, 2024
- Airport
- OSH · Wittman Rgnl, runway 27, 6,179 × 150 ft, concrete
- Equipment
- ADS-B, Electronic flight bag or handheld device
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
- 69
- Injuries
- None
- Certificates
- Airline transport, Flight engineer, Commercial
- Airplane ratings
- Multi-engine land, Single-engine land
- Medical
- Class 1, With waivers/limitations
- Last flight review
- April 18, 2024
- Seat
- Front
- Restraint
- 5-point
- Flight hours
- 26,000 total · 521 in this make and model · 14,000 as pilot in command · 55.6 in the last 90 days · 24.2 in the last 30 days · 2.5 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- Calm
- Visibility
- 10 statute miles
- Lowest ceiling
- 1,600 ft overcast
- Temperature
- 68 °F, dew point 63 °F
- Altimeter
- 30.28 inHg
- Observed at
- KOSH
- METAR
- KOSH 251353Z 00000KT 10SM SCT008 OVC016 20/17 A3028 RMK AO2 SLP245 T02000167
Docket · 2
The files NTSB released with the investigation on February 27, 2025, on NTSB’s docket system: statements, records, photos and specialists’ reports. 5.0 MB in all.