ASN Wikibase Occurrence # 213930
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| Date: | Wednesday 1 August 2018 |
| Time: | 13:35 LT |
| Type: |  Piper PA-31-310 Navajo C |
| Owner/operator: | Aries Aviation Services |
| Registration: | C-FNCI |
| MSN: | 31-8112007 |
| Year of manufacture: | 1981 |
| Engine model: | Avco Lycoming TIO-540-A2C |
| Fatalities: | Fatalities: 2 / Occupants: 2 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | Rae Glacier area near Kanasakis, AB -
 Canada
|
| Phase: | En route |
| Nature: | Survey |
| Departure airport: | Penticton Airport, BC |
| Calgary/Springbank Airport, AB (CYBW) | |
| Investigating agency: | TSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
In the afternoon of 1 August 2018, after completing two hours of survey activities, an Aries Aviation International Piper PA-31 aircraft was proceeding to Calgary/Springbank Airport Alberta (CYBW), at 15 000 feet above sea level (ASL), with a pilot and a survey technician on board. Approximately 40 nautical miles southwest of the airport, air traffic control began sequencing the aircraft for arrival into the Calgary airspace. At this time, for reasons that could not be determined, the right engine began operating at a significantly lower power setting than the left engine. About 90 seconds later, at approximately 13 500 feet, the aircraft departed controlled flight. The aircraft collided with terrain near the summit of Mount Rae at 13:36 (MDT). The pilot and survey technician were both fatally injured.
The investigation determined that, although a portable oxygen system was activated and available, the pilot was not continuously using oxygen while the aircraft was above 13 000 feet ASL, as required by regulation, and likely became hypoxic. Although hypoxia can cause pronounced performance degradations, its onset can be slow and gradual, making it likely the pilot did not recognize the symptoms, and thus took no action to restore his supply of oxygen. The investigation also found that if flight crews do not undergo practical hypoxia training, there is a risk they will not recognize its onset when flying above 13 000 feet without continuous use of supplemental oxygen.
The aircraft was not equipped with a flight data recorder or cockpit voice recorder, nor were these required by regulation. However, the aircraft was equipped with a flight data monitoring system that included a camera. This system provided significant information to help TSB investigators better understand the underlying factors that contributed to the accident.
Accident investigation:
 |
|
Sources:
https://www.cbc.ca/news/canada/calgary/alberta-kananaskis-plane-crash-1.4770520
https://calgary.ctvnews.ca/emergency-crews-called-to-scene-of-plane-crash-in-kananaskis-1.4036959
https://calgarysun.com/news/local-news/breaking-plane-crashes-in-kananaskis-country
TSB
https://flightaware.com/live/flight/CFNCI/history/20180801/1630Z/CYYF/CYBW/tracklog
http://www.tsb.gc.ca/eng/medias-media/communiques/aviation/2019/a18w0116-20190801.html
Images:
Final flight path of the aircraft leading up to the loss of control and spin entry (TSB)
Media:
PLANE MISSING
— Tom Podolec (@TomPodolec) 1 août 2018
Emergency services are searching for an aircraft, reported crashed, near Kanasakis, southwest of Calgary.
RCAF rescue aircraft from Winnipeg and Cold Lake have been dispatched. Aircraft possibly a two engine prop with one person on board. pic.twitter.com/YhnO4StbsB
Update
— Tom Podolec (@TomPodolec) August 2, 2018
Missing plane located crashed near Kananaskis, Alberta. Sources tell me aircraft is a Piper PA-31 with two people on board. Their status not known. Plane was performing aerial survey work today & heading to Calgary when it disappeared. @flightradar24 flight track attached. pic.twitter.com/tyjoo6qxy6
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 01-Aug-2018 21:45 | Iceman 29 | Added |
| 01-Aug-2018 21:53 | Iceman 29 | Updated [Location, Source, Embed code, Narrative] |
| 01-Aug-2018 21:54 | Iceman 29 | Updated [Date] |
| 01-Aug-2018 21:56 | Geno | Updated [Source] |
| 01-Aug-2018 22:58 | Iceman 29 | Updated [Date] |
| 02-Aug-2018 06:37 | harro | Updated [Aircraft type, Registration, Cn, Operator, Total fatalities, Total occupants, Other fatalities, Phase, Nature, Departure airport, Destination airport, Source, Damage, Narrative] |
| 02-Aug-2018 07:21 | Aerossurance | Updated [Time, Location, Narrative] |
| 02-Aug-2018 07:22 | Aerossurance | Updated [Source, Embed code, Narrative] |
| 14-Aug-2018 19:14 | harro | Updated [Time, Departure airport, Destination airport, Source, Embed code, Narrative] |
| 26-Dec-2018 09:29 | Anon. | Updated [Narrative] |
| 02-Aug-2019 18:30 | Aerossurance | Updated [Source, Narrative] |
| 03-Aug-2019 12:08 | harro | Updated [Photo, Accident report, ] |
| 02-Nov-2023 18:36 | harro | Updated [[Photo, Accident report, ]] |
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