The National Transportation Safety Board (NTSB) has released its preliminary findings into the fatal runway collision at LaGuardia Airport, offering new insight into the chain of events that led to an Air Canada jet striking a firefighting vehicle late at night.

As the carrier faces the prospect of a major flight attendant strike this weekend.

Air Canada has announced its decision to bolster its fleet with an order for 18 Boeing 787-10 widebody jets and an enticing option for an additional 12 aircraft.