On 29 October 2021, a Bombardier CRJ900 lined up and began a night takeoff in fog at San Diego aligned with the left runway edge lights instead of the runway centreline. This damaged some of the edge lights and the aircraft wing and landing gear. The pilots stated they had been unaware of their error until aircraft damage was found after landing, despite returning closer to the runway centreline after about a third of their takeoff roll. Subsequent minor modifications to related operator runway lineup procedure were noted. The investigation also examined causes of a fuel imbalance during the incident flight.