A British Airways Boeing 787-9, registration G-ZBKO performing flight BA-269 from London Heathrow,EN (UK) to Los Angeles,CA (USA), was climbing out of London's runway 27R when the crew stopped the climb at FL110 due to problems with the flaps. The aircraft entered a hold over the North Sea to dump fuel and returned to London. On approach the crew advised they needed to maintain high speed, would attempt to deploy the flaps early to see whether they came out normally. The aircraft subsequently landed safely on runway 27R at a higher than normal speed (174 knots over ground) about 90 minutes after departure.
A passenger reported it appeared there was an issue with the flaps.