ASN Wikibase Occurrence # 236516
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| Date: | Thursday 28 May 2020 |
| Time: | 14:10 |
| Type: |  AutoGyro Cavalon |
| Owner/operator: | Private |
| Registration: | N477AG |
| MSN: | V00201 |
| Year of manufacture: | 2015 |
| Engine model: | Rotax 914ULS |
| Fatalities: | Fatalities: 1 / Occupants: 1 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | Roseburg, OR -
 United States of America
|
| Phase: | En route |
| Nature: | Private |
| Departure airport: | Myrtle Creek Airport, OR (16S) |
| Shelton Airport, WA (SHN) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The pilot departed an airport on a cross country flight and had flown about 7 miles before witnesses observed the aircraft flying between 1,000 ft to 2,000 ft above ground level (agl), at which time they also heard the engine make an unusual noise as if something had come off the aircraft. They subsequently observed the gyrocopter enter an uncontrolled descent and impact terrain. One of the witnesses observed parts coming off the gyrocopter, which he believed was either the engine or the transmission coming apart. He also observed the “tail boom” break off, swing forward, and crash into the passenger side of the cockpit, which sent it into an uncontrollable spin and subsequent impact with terrain at about a 45° nose-down attitude.
A postaccident examination of the gyrocopter revealed that the keel tube had signature strike marks consistent with a main rotor blade impact. This physical evidence was indicative of a substantially unweighted rotor system. This would have occurred while the aircraft was nosed over for a long period of time, at which time the rotor likely lost its directional orientation and spun out of axis and struck the keel tube. However, the duration of any nose over made by the gyrocopter during the accident flight could not be determined due to a lack of available evidence. The parts that departed the gyrocopter inflight were not identified during the investigation.
Probable Cause: substantially unweighted rotor system for reasons that could not be determined, which resulted in contact between the main rotor blade and the gyrocopter’s keel tube and a loss of control and impact with terrain.
Accident investigation:
 |
|
Sources:
https://www.sfchronicle.com/news/article/1-dead-in-helicopter-crash-near-Roseburg-15301903.php
https://www.kezi.com/content/news/Deputies-investigate-fatal-helicopter-crash-570851031.html
https://www.facebook.com/katunews/posts/10157614891346448
https://www.oregonlive.com/news/2020/05/at-least-1-killed-in-douglas-county-helicopter-crash.html
https://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?NNumbertxt=N477AG
https://www.flickr.com/photos/egbj/46728269942 (photo)
NTSB
- Previous accident:
https://aviation-safety.net/wikibase/wiki.php?id=236542
History of this aircraft
Other occurrences involving this aircraft
| 14 August 2019 | N477AG | Private | 0 | Sanderson Field Airport (KSHN/SHN), Shelton, WA | |
sub |
| Loss of control | ||||||
Location
Images:
Photo: NTSB
Media:
NTSB is investigating the crash Thursday of an experimental gyrocopter in Roseburg, OR. The NTSB is not traveling to the crash scene at this time.
— NTSB_Newsroom (@NTSB_Newsroom) May 29, 2020
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 28-May-2020 23:55 | Geno | Added |
| 29-May-2020 05:33 | Geno | Updated [Source, Narrative] |
| 29-May-2020 07:34 | Captain Adam | Updated [Aircraft type, Embed code, Narrative] |
| 29-May-2020 13:27 | RobertMB | Updated [Aircraft type, Registration, Cn, Operator, Location, Nature, Source, Embed code, Damage, Narrative] |
| 30-May-2020 06:39 | Captain Adam | Updated [Location, Source, Narrative] |
| 02-Jun-2022 22:38 | Captain Adam | Updated [Time, Location, Phase, Departure airport, Destination airport, Source, Damage, Narrative, Category, Accident report, Photo] |
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