Margin of Error: The crash of Pacific Western Airlines flight 314

Firefighters search the wreckage of flight 314 after the crash. Image source: The Calgary Herald
A Pacific Western Boeing 737 similar to the one involved in the accident. Image source: Perry Hoppe
Map of flight 314’s planned route. (Google)
The sum total of the communications between Cranbrook and flight 314. Image source: Transport Canada
My original drawing of the surprise snow plow encounter.
How a bucket style reverser works. Image sources: Allin Martins Antunes, Mark Leibowitz, and Flight Literacy
The final moments of flight 314, overlaid with communications and flight data. Image source: Transport Canada
My original drawing of the moment of impact.
Much of the cabin was reduced to rubble during the violent impact. Image source: worldairphotography.com
A fire burns amid the wreckage of the forward cabin. (Original rights holder unclear)
The vertical stabilizer remained surprisingly undamaged. Image source: worldairphotography.com
Emergency workers stand near one of flight 314’s battered engines. The remains of passenger seats can be seen scattered nearby. Image source: The Calgary Herald
Newspaper headlines the day after the crash preserve the early discussions surrounded the cause. Image source: The Calgary Herald
Clear skies the following day contrasted with the snow-dusted wreckage. (Original rights holder unclear)
An aerial shot from the day of the crash captures the distribution of wreckage. (Original rights holder unclear)
An aerial shot from an alternate angle. (Original rights holder unclear)
A PWA 737–200 takes off, perhaps a little more safely than before. Image source: Michael Haywood

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