An amateur-built aircraft accident near Mayo, Ca, April 1, 2011
On April 1, 2011, a an amateur-built aircraft, registered CGMCW, was substantially damaged in an accident near Mayo. It was flown under rules the NTSB did not record. 1 person was killed.
The NTSB's probable cause their words, unchanged
The NTSB has not yet published a probable cause for this accident. Investigations usually take one to two years; this page updates when the final report is released.
Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- April 1, 2011
- Place
- Mayo, Canada
- Type
- Accident
- Injuries
- 1 person was killed.
- Weather
- not recorded
- Aircraft
- An amateur-built aircraft
- Registration
- CGMCW · no longer on the register
- Damage
- Substantial damage
- Flight
- Flight · rules the NTSB did not record
The NTSB's narrative final · quoted from the NTSB record
On March 31, 2011, approximately 1745 pacific daylight time, a Canadian registered De Havilland DHC-3T airplane, Canadian registration C-GMCW sustained substantial damage when it broke-up in-flight, about 39 nautical miles northeast of Mayo, Yukon Territory, Canada. The airplane was owned and operated by the Black Sheep Aviation and Cattle Company, Whitehorse, Yukon Territory. The solo pilot was killed in the accident. The investigation of this accident is under the jurisdiction of the Transportation Safety Board of Canada. Further information pertaining to this accident can be obtained from: Transportation Safety Board of Canada 17803-106A Ave, Edmonton, Alberta, Canada, T5S 1V8
The complete narrative as the NTSB published it. The NTSB's docket holds the report as a PDF and any photographs, statements and other documents from the investigation.
The factual record from the NTSB's investigation tables, in plain English
The aircraft
- Landing gear: fixed
- Operator: Black Sheep Aviation And Cattle Company
The flight
- Flight plan: not recorded
Weather at the time
- Temperature: 0°F (-18°C), dew point 0°F (-18°C)
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Flight crew | 1 |
Documents from the investigation the NTSB's docket: the evidence folder behind the report
The docket, the folder of records gathered during an investigation (maintenance records, photographs, witness statements, examinations), has not been read from the NTSB for this case yet; the list appears here once it has. Open the docket at the NTSB.
Everything on this page comes from the NTSB's public records. The narrative, probable cause and findings are the NTSB's own words; the coded tables behind the report are written out in plain English, with pilots' ages, home towns and medical details left out. The documents and photographs are the NTSB's docket, shown as the NTSB released them. This site's own text never names anyone involved. A preliminary report can change; the final report usually follows one to two years later, and the page is refreshed when it does.