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ASN Wikibase Occurrence # 220992
Last updated: 20 October 2021
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Time:18:30 UTC
Type:Silhouette image of generic B38M model; specific model in this crash may look slightly different
Boeing 737 MAX 8
Owner/operator:Air Canada
Registration: C-FSNQ
MSN: 61222/6940
Fatalities:Fatalities: 0 / Occupants: 169
Other fatalities:0
Aircraft damage: None
Location:570 nm W of Seattle, WA, USA -   Pacific Ocean
Phase: En route
Nature:Passenger - Scheduled
Departure airport:Vancouver International Airport, BC (YVR/CYVR)
Destination airport:Honolulu-Daniel K. Inouye International Airport, HI (HNL/PHNL)
A Boeing 737-8 MAX aircraft operated by Air Canada, was conducting flight AC517 from Vancouver Intl (CYVR), BC to Honolulu/Daniel K Inouye Intl (PHNL), HI. During cruise flight, continuous light turbulence was encountered as expected. Shortly after, flight conditions worsened to continuous moderate turbulence at FL360. As the flight subsequently encountered severe turbulence, a PAN PAN was declared, and the flight crew requested a lower altitude via Controller-Pilot Data Link Communications (CPDLC). The autopilot could not maintain the selected altitude or speed, as there were variations of at least +/- M.03 and +/- 500 feet observed. The aircraft descended to FL300 and continued to destination without further incident.


TSB A19F0005

Other occurrences involving this aircraft

22 Dec 2020 C-FSNQ Air Canada 0 near Marana, AZ non


Photo of C-FSNQ courtesy

Victoria - International (CYYJ / YYJ)
7 September 2021; (c) Tim Martin

Revision history:

21-Jan-2019 20:34 harro Added

Corrections or additions? ... Edit this accident description