- Date
- March 29, 2023, 12:15 local (17:15 UTC)
- Place
- Clarksville, TN
- Injuries
- 2 minor
- Damage
- Substantial damage
- Phase of flight
- Maneuvering
- Aircraft
- N242JLHelicopteres Guimbal Cabri G2
- Defining event
- Maneuvering-hover: Dynamic rollover
- Weather
- Visual (VMC) · Day
- Status
- Completed
- Report
- Approved by Office Director
- Investigation class
- Class 4 - Basic report with no Prelim publish
- NTSB office
- Eastern Region Aviation
- Parties
- FAA/FSDO
- FAA report
- 20230329005629A
- Case key
- 106977
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 flight instructor’s inadequate remedial action following an abrupt control input by the student pilot, which resulted in abnormal contact with the ground and a dynamic rollover.
Findings · 2
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 flight instructor of the helicopter reported that the student pilot was taking his second lesson, learning to hover over a grass area at the airport. The flight instructor was operating the collective and anti-torque pedals, while the student pilot was operating the cyclic. The student pilot made an abrupt rearward movement with the cyclic. The flight instructor increased throttle and raised the collected to gain height; however, the right rear skid contacted the ground, resulting in a dynamic rollover. The flight instructor added that there were no preimpact mechanical malfunctions with the helicopter and that in the future, he should initiate hover training at a higher height. Examination of the helicopter by a Federal Aviation Administration inspector revealed substantial damage to the main rotor blades, fuselage, and tailboom.
Aircraft
- Registration
- N242JL
- Reported as
- Helicopteres Guimbal Cabri G2
- Category
- Helicopter
- Serial number
- 1319
- Built
- 2023
- Airframe hours
- 24
- Engine
- Lycoming O-360, 180 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Instructional · Part 91
- Operator
- Austin Peay State University
- Registered owner
- Rotor Leasing LLC
- Airworthiness certificate
- Standard, Normal
- Last inspection
- Annual · March 22, 2023 · 10 hours before
- Airport
- CKV · Outlaw Field
- Equipment
- ADS-B, Electronic primary flight display, Electronic multifunction display
Flight crew · 2
As NTSB recorded them. NTSB leaves out names.
- Role
- Flight instructor
- Age
- 40
- Injuries
- Minor
- Certificates
- Commercial, Flight instructor
- Instrument ratings
- Helicopter
- Medical
- Class 2, Without waivers/limitations
- Last flight review
- February 2, 2023
- Seat
- Left
- Restraint
- 4-point
- Flight hours
- 320 total · 200 in this make and model · 252 as pilot in command · 57 in the last 90 days · 18 in the last 30 days · 4 in the last 24 hours
- Role
- Student pilot
- Age
- 30
- Injuries
- Minor
- Certificate
- Student
- Medical
- Class 2, Without waivers/limitations
- Seat
- Right
- Restraint
- 4-point
- Flight hours
- 2 total · 2 in this make and model · 0 as pilot in command · 2 in the last 90 days · 2 in the last 30 days · 1 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 70° at 4 knots
- Visibility
- 10 statute miles
- Lowest ceiling
- None
- Temperature
- 55 °F, dew point 28 °F
- Altimeter
- 30.31 inHg
- Observed at
- CKV
- METAR
- KCKV 291652Z AUTO 07004KT 10SM CLR 13/M02 A3031
Docket · 3
The files NTSB released with the investigation on June 29, 2023, on NTSB’s docket system: statements, records, photos and specialists’ reports. 2.2 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.