A British Airways flight from Montreal to London Heathrow was delayed for several hours after an emergency slide was accidentally deployed. The incident occurred as the aircraft was preparing for departure from Montréal–Trudeau International Airport. According to reports, the emergency slide was triggered by a senior cabin crew member, leading to confusion and a delay. The slide was deployed onto a ground-service truck positioned beside the open cabin door.

The error caused significant disruption, with the flight remaining on the tarmac for over three and a half hours. Passengers were reportedly affected by the unexpected delay, though no injuries were reported. British Airways has since been informed of the incident, and internal reviews are likely to follow. The exact cause of the activation remains under investigation.

The incident highlights the potential for human error in aviation operations, even during routine preparations. Airlines often emphasize the importance of strict protocols to prevent such occurrences. While the delay was resolved, the event has raised questions about safety procedures during pre-flight checks.