- Date
- October 9, 2018, 19:04 local (23:04 UTC)
- Place
- Three Rivers, MI
- Injuries
- 1 serious
- Damage
- Substantial damage
- Phase of flight
- Takeoff
- Aircraft
- UNREGKreling Supercat
- Defining event
- Takeoff: Aerodynamic stall/spin
- Weather
- Visual (VMC) · Day
- Status
- Completed · report December 16, 2019
- Report
- Approved by Office Director
- NTSB office
- Western Pacific Region
- Parties
- Federal Aviation Adminstration FSDO
- Case key
- 98511
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 the proper pitch attitude and adequate airspeed during takeoff, which resulted in an aerodynamic stall.
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 private pilot reported that he had just completed constructing the unregistered experimental, amateur-built airplane, and during takeoff for the airplane's first flight from the grass airstrip, he failed to maintain the proper pitch attitude and adequate airspeed, and the airplane experienced an aerodynamic stall. The airplane struck the ground nose down just beyond the end of the runway, which resulted in substantial damage to the forward fuselage. The pilot reported no mechanical malfunctions or failures with the airplane that would have precluded normal operation.
Factual narrative
On October 9, 2018, at 1904 eastern daylight time, an unregistered experimental amateur-built Supercat airplane collided with terrain after takeoff from Three Rivers Municipal Dr Haines Airport, Three Rivers, Michigan. The private pilot sustained serious injuries, and the airplane sustained substantial damage to the forward fuselage. The airplane was operated by the pilot/builder under the provisions of Title 14 Code of Federal Regulations Part 91 as a local personal flight. Visual meteorological conditions prevailed, and no flight plan had been filed. The flight was originating at the time of the accident.The pilot reported that he recently completed construction of the airplane, and although he had previously performed multiple high-speed taxi tests and "crow hops", this was to be the first flight. He stated that the takeoff runway was a 1,000-ft-long grass strip, adjacent and parallel to Runway 9. After warming up the engine, he taxied the airplane into position, and initiated the takeoff roll. The airplane lifted off after traveling about 1/4 of the runway length, and he stated that during the initial climb he failed to maintain the correct pitch attitude and adequate airspeed, and the airplane experienced an aerodynamic stall. The airplane struck the ground nose-down just beyond the end of the runway. The airplane was equipped with a Rotax 447 series two-stroke engine. The pilot indicated that he planned to register the airplane with the Federal Aviation Administration once he had established that it could be flown. He reported that there were no preimpact mechanical malfunctions or failures with the airframe or engine that would have precluded normal operation.
Aircraft
- Registration
- UNREG
- Reported as
- Kreling Supercat
- Category
- Airplane, amateur-built
- Serial number
- None
- Built
- 2018
- Airframe hours
- 0
- Engine
- Rotax 447, 38 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Personal · Part 91
- Airworthiness certificate
- None
- Departed
- HAI · Three Rivers, MI
- Destination
- HAI · Three Rivers, MI
- Airport
- HAI · Three Rivers Muni Dr Haines, runway 09L, 1,000 × 1,000 ft, grass/turf
- Equipment
- None
Flight crew
As NTSB recorded them. NTSB leaves out names.
- Role
- Pilot
- Age
- 63
- Injuries
- Serious
- Certificate
- Private
- Airplane ratings
- Single-engine land
- Medical
- Sport pilot
- Seat
- Single
- Restraint
- 4-point
- Flight hours
- 158.1 total · 0.1 in this make and model · 120.4 as pilot in command
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 160° at 4 knots
- Visibility
- 10 statute miles
- Lowest ceiling
- None
- Temperature
- 79 °F, dew point 64 °F
- Altimeter
- 29.96 inHg
- Observed at
- KHAI
Docket · 3
The files NTSB released with the investigation on February 12, 2019, on NTSB’s docket system: statements, records, photos and specialists’ reports. 1.8 MB in all.