- Date
- January 6, 2015, 16:00 local (23:00 UTC)
- Place
- Grand Junction, CO
- Injuries
- 1 serious, 1 minor
- Damage
- Substantial damage
- Phase of flight
- Enroute
- Aircraft
- N50NEBurton Calidus
- Defining event
- Enroute-climb to cruise: Loss of control in flight
- Weather
- Visual (VMC) · Day
- Status
- Completed · report March 10, 2015
- Report
- Approved by Office Director
- NTSB office
- Central Region
- FAA report
- 20150106000249A
- Case key
- 90664
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 clearance with terrain that was along the planned route of flight.
Findings · 1
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 stated that during a flight to the destination airport, the gyrocopter was in a slow climb at about 60 knots due to higher terrain that he knew was approaching along the route. As the gyrocopter approached a ridge, the pilot noticed that more altitude was needed, so he turned left of course along the ridge while continuing the climb, expecting to turn right at an area that he saw had lower terrain. The pilot said that things were still going well, but the climb rate had decreased somewhat. As the gyrocopter approached the area of lower terrain, the gyrocopter started to descend quickly with a best rate of climb speed of 52 knots. The gyrocopter descended lower than the surrounding trees and "brushed" the tree tops, tipping the gyrocopter forward and to the right. The pilot saw a small clearing and applied corrective control input to maintain an upright attitude of the gyrocopter and to reach the clearing. Just before entering the clearing, the gyrocopter contacted oak brush with its rotor blades, which sustained substantial damage. The gyrocopter landed in the clearing and slid with minimal forward speed to a stop. The aircraft fuselage had a fractured nose and collapsed nose gear. The pilot sustained serious injuries and the passenger sustained minor injuries. The pilot stated that if he had turned right at the approach of the ridge where the terrain was lower, he could have gone around the south end of the ridge. He said he should have expected a down draft on the lee side of the ridge and could also have executed an escape route earlier by turning away from the ridge before the area of down flowing air.
Factual narrative
The pilot stated that during a flight to the destination airport, the gyrocopter was in a slow climb at about 60 knots due to higher terrain that he knew was approaching along the route. As the gyrocopter approached a ridge, the pilot noticed that more altitude was needed, so he turned left of course along the ridge while continuing the climb, expecting to turn right at an area that he saw had lower terrain. The pilot said that things were still going well, but the climb rate had decreased somewhat. As the gyrocopter approached the area of lower terrain, the gyrocopter started to descend quickly with a best rate of climb speed of 52 knots. The gyrocopter descended lower than the surrounding trees and "brushed" the tree tops, tipping the gyrocopter forward and to the right. The pilot saw a small clearing and applied corrective control input to maintain an upright attitude of the gyrocopter and to reach the clearing. Just before entering the clearing, the gyrocopter contacted oak brush with its rotor blades, which sustained substantial damage. The gyrocopter landed in the clearing and slid with minimal forward speed to a stop. The aircraft fuselage had a fractured nose and collapsed nose gear. The pilot sustained serious injuries and the passenger sustained minor injuries. The pilot stated that if he had turned right at the approach of the ridge where the terrain was lower, he could have gone around the south end of the ridge. He said he should have expected a down draft on the lee side of the ridge and could also have executed an escape route earlier by turning away from the ridge before the area of down flowing air.
Aircraft
- Registration
- N50NE
- Reported as
- Burton Calidus
- Category
- Gyroplane, amateur-built
- Serial number
- C00240
- Built
- 2014
- Airframe hours
- 151.3
- Engine
- Rotax 912ULS, 100 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Business · Part 91
- Operator
- Airgyro Aviation LLC
- Registered owner
- Airgyro Aviation LLC
- Airworthiness certificate
- Special, Experimental (Special)
- Departed
- MTJ · Montrose, CO
- Destination
- U77 · Spanish Fork, UT
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
- 53
- Injuries
- Serious
- Certificates
- Flight instructor, Sport Pilot, Commercial
- Airplane ratings
- Single-engine land, Multi-engine land
- Instrument ratings
- Airplane
- Medical
- Sport pilot, Unknown
- Last flight review
- August 30, 2013
- Seat
- Front
- Restraint
- 3-point
- Flight hours
- 3,691 total · 417 in this make and model · 3,151 as pilot in command · 17 in the last 90 days · 7 in the last 30 days · 3 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- Calm
- Visibility
- 10 statute miles
- Lowest ceiling
- None
- Temperature
- 36 °F, dew point 37 °F
- Altimeter
- 30.48 inHg
- Observed at
- GJT
Docket · 1
The files NTSB released with the investigation on March 6, 2015, on NTSB’s docket system: statements, records, photos and specialists’ reports. 445 KB 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.
Other investigations on N50NE · 1
Matched to the same aircraft by N-number and date.