What happened
On January 14, 2011, at 0655 UTC, an Boeing 767-300, registration C-GHLQ, was operating as Air Canada flight 878 en route from Toronto, Canada, to Zurich, Switzerland. While cruising at 35,000 feet over the North Atlantic Ocean, the aircraft experienced a pitch excursion that resulted in a loss of 300 feet of altitude.
At the time of the event, the seatbelt sign had been activated 41 minutes prior. The incident resulted in 15 injuries, including 13 passengers and two flight attendants. Following the excursion, the crew determined the extent of the injuries and elected to continue the flight to the destination. Upon arrival in Zurich, seven passengers were transported to local hospitals for further medical assessment and observation. The aircraft sustained no damage.