Pilots of a Virgin Atlantic Boeing 787-9 Dreamliner spotted the two drones by 90 feet as they came in on flight VS301 from Delhi to London on February 14, over Brentford.
The B787-9 Dreamliner was transporting 264 passengers as it flew over Brentford in Essex.
The report by the UK Airprox Board suggests that the drone fliers panicked and tried to get out of the way at least, as the summary said: “The first drone was slightly low and a bit further out, whereas the second was close in at the same level and seemed to take avoiding action.”
The incident was rated as Category A, which is the most serious category.