- Date
- November 17, 2017, 10:00 local (15:00 UTC)
- Place
- Oak Island, NC
- Injuries
- 2 uninjured
- Damage
- Substantial damage
- Phase of flight
- Initial climb
- Aircraft
- N470CHHomer Autogyro Cavalon
- Defining event
- Initial climb: Loss of engine power (partial)
- Weather
- Visual (VMC) · Day
- Status
- Completed
- Report
- Approved by Office Director
- Investigation class
- Class 3
- NTSB office
- Eastern Region Aviation
- Parties
- FAA/FSDO
- FAA report
- 20171117018839A
- Case key
- 96349
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 NTSB’s determination of the probable cause, and any contributing factors.
A partial loss of engine power for reasons that could not be determined based on the available information.
Findings · 1
NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings.
Analysis
The pilot and flight instructor were conducting a flight review in the pilot’s experimental gyroplane. Both reported that the engine start, run up, and takeoff were normal. About 100 ft above ground level, they increased throttle to full power, which engaged the turbocharger. Immediately after, there was a rapid loss of engine power from 5,000 rpm to 3,000 rpm, and they were unable to maintain flight. The flight instructor took control of the aircraft and made a 180° turn back toward the runway but was unable to reach the runway at the completion of the turn. The aircraft landed hard in the grass, resulting in substantial damage to the fuselage. The pilot reported that the aircraft was damaged beyond repair and disposed of; therefore, no additional examination of the engine was conducted, and the reason for the loss of power could not be determined.
Factual narrative
On November 17, 2017, about 1000 eastern standard time, an experimental, amateur-built Autogyro Cavalon, N470CH, was substantially damaged when it was involved in an accident near Oak Island, North Carolina. The private pilot and flight instructor were not injured. The flight was conducted as a Title 14 Code of Federal Regulations Part 91 instructional flight. The pilot, who was also the owner of the aircraft, reported that he was receiving instruction for his flight review. The engine run-up and takeoff to the southwest were normal, but while climbing through 100 ft above ground level, shortly after applying full power, which engaged the turbocharger, there was a rapid loss of engine power from 5,000 rpm to 3,000 rpm, and they were unable to maintain flight. The flight instructor took control of the aircraft and made a 180° turn back toward runway 5. Immediately after completing the turn, the aircraft landed hard in the grassy area west of the runway and rolled to a stop. Examination by a Federal Aviation Administration (FAA) inspector revealed that the fuselage was cracked in multiple locations, and the center throttle console was buckled, which revealed substantial internal damage to the airframe. Subsequent follow-up with the pilot revealed that the gyrocopter was damaged beyond repair and disposed of with no additional troubleshooting or examination of the engine or turbocharger conducted.
Sequence of events
The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident.
Aircraft
- Registration
- N470CH
- Reported as
- Homer Autogyro Cavalon (NO SERIES)
- Category
- Gyroplane, amateur-built
- Serial number
- V00015
- Built
- 2012
- Airframe hours
- 217
- Engine
- Rotax 914UL, 115 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Instructional · Part 91
- Operator
- AIC Recycling LLC
- Registered owner
- AIC Recycling LLC
- Airworthiness certificate
- Special, Experimental (Special)
- Last inspection
- Condition · November 4, 2017 · 1 hours before
- Departed
- SUT · Oak Island, NC
- Destination
- SUT · Oak Island, NC
- Airport
- SUT · Cape Fear Rgnl Jetport/Howie F, runway 23, 5,505 × 100 ft, asphalt
- Equipment
- Handheld GPS
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 · 2
As NTSB recorded them. NTSB leaves out names.
- Role
- Pilot
- Age
- 67
- Injuries
- None
- Certificate
- Private
- Airplane ratings
- Single-engine land
- Instrument ratings
- Airplane
- Medical
- Class 3, With waivers/limitations
- Last flight review
- July 25, 2014
- Seat
- Left
- Restraint
- 3-point
- Flight hours
- 535 total · 218 in this make and model
- Role
- Flight instructor
- Age
- 54
- Injuries
- None
- Certificates
- Private, Sport Pilot, Flight instructor
- Airplane ratings
- Single-engine land
- Medical
- Class 3, With waivers/limitations
- Seat
- Right
- Restraint
- 4-point
- Flight hours
- 330 total
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 20° at 13 knots
- Visibility
- 10 statute miles
- Lowest ceiling
- None
- Temperature
- 52 °F, dew point 34 °F
- Altimeter
- 30.22 inHg
- Observed at
- ILM, 22 nm away
Docket · 5
The files NTSB released with the investigation on July 15, 2021, on NTSB’s docket system: statements, records, photos and specialists’ reports. 8.9 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.