- Date
- July 30, 2021, 10:00 local (15:00 UTC)
- Place
- Oshkosh, WI
- Injuries
- 2 minor
- Damage
- Substantial damage
- Phase of flight
- Landing
- Aircraft
- N725DWWeiss Denis Sparrow II
- Defining event
- Landing-flare/touchdown: Abnormal runway contact
- Weather
- Visual (VMC) · Day
- Status
- Completed
- Report
- Approved by Office Director
- Investigation class
- Class 4 - Basic report with no Prelim publish
- NTSB office
- Central Region
- Parties
- Federal Aviation Administration
- FAA report
- 20210730012219A
- Case key
- 103593
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 improper landing flare which resulted in a bounced landing, a loss of control, and runway excursion.
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 reported that during landing on a grass runway, the airplane first bounced about 5 ft high, then bounced a few more times as it neared the end of the runway. The pilot added that he did not have enough remaining runway to complete a go-around, so he applied the brakes, but they did not work. The airplane continued off the end of the runway and impacted a small ditch and sustained substantial damage to the fuselage and engine mount. A postaccident examination of the brake system revealed no mechanical malfunctions or anomalies that would have precluded normal operation.
Aircraft
- Registration
- N725DW
- Reported as
- Weiss Denis Sparrow II
- Category
- Airplane
- Serial number
- CA3-323
- Built
- 2005
- Airframe hours
- 300
- Engine
- Rotax, 81 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Personal · Part 91
- Registered owner
- Pickens William Dale
- Airworthiness certificate
- Special, Experimental (Special)
- Last inspection
- Annual · July 31, 2020
- Airport
- OSH · Wittman Rgnl, runway 05L/23R, 1,100 × 100 ft, grass/turf
- Equipment
- Video recording device, Data recorder, Onboard weather, Satellite tracking 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
- 68
- Injuries
- Minor
- Certificate
- Sport Pilot
- Airplane ratings
- Single-engine land
- Medical
- Sport pilot, Unknown
- Last flight review
- April 13, 2021
- Seat
- Left
- Restraint
- 3-point
- Flight hours
- 3,800 total · 250 in this make and model · 14 in the last 30 days · 4.5 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 30° at 10 knots
- Visibility
- 10 statute miles
- Lowest ceiling
- None
- Temperature
- 66 °F, dew point 52 °F
- Altimeter
- 30.21 inHg
- Observed at
- KOSH, 1 nm away
- METAR
- KOSH 301453Z 03010KT 10SM CLR 19/11 A3021 RMK AO2 SLP222 T01890106 51008
Docket · 3
The files NTSB released with the investigation on October 13, 2021, on NTSB’s docket system: statements, records, photos and specialists’ reports. 2.0 MB in all.
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.