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ASN Wikibase Occurrence # 172745
Last updated: 16 November 2020
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Type:Silhouette image of generic CDUS model; specific model in this crash may look slightly different
AutoGyro Calidus
Owner/operator:Airgyro Aviation LLC
Registration: N50NE
C/n / msn: C00240
Fatalities:Fatalities: 0 / Occupants: 2
Aircraft damage: Substantial
Location:Johnson Creek area south of Glade Park, CO -   United States of America
Phase: Unknown
Departure airport:Montrose, CO (MTJ)
Destination airport:Spanish Fork, UT (U77)
Investigating agency: NTSB
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.
Probable Cause: The pilot's failure to maintain clearance with terrain that was along the planned route of flight.


FAA register: NTSB:
FAA register:

Other occurrences involving this aircraft

20 May 2016 N50NE Private 0 Uinta National Forest, Wasatch County, UT sub

Revision history:

07-Jan-2015 07:19 Geno Added
07-Jan-2015 18:05 Geno Updated [Aircraft type, Registration, Cn, Operator, Source, Narrative]
07-Jan-2015 18:10 Geno Updated [Departure airport, Source]
07-Jan-2015 18:59 harro Updated [Aircraft type]
21-Dec-2016 19:28 ASN Update Bot Updated [Time, Damage, Category, Investigating agency]
05-Nov-2017 08:47 ASN Update Bot Updated [Other fatalities, Nature, Departure airport, Destination airport, Source, Narrative, Plane category]
01-Dec-2017 11:48 ASN Update Bot Updated [Nature, Source, Plane category]

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