Travellers hoping to fly on the Dreamliner from London airports such as Stansted are in for a long wait as further delays have hit the delivery of the aircraft to airlines.
US-based Boeing said issues with the availability of a Rolls-Royce engine needed for the final phases of testing the aircraft were behind the delay.
The firm said it was in talks with Rolls-Royce to “expedite engine availability”.
Delivery of the aircraft to Japan’s All Nippon Airways is now expected for February next yea, Boeing said.
The Dreamliner, whose UK customers include British Airways, Virgin Atlantic and Thomson Airways, is already more than two years behind schedule.
The Dreamliner has been hailed as a revolutionary plane, emitting less carbon dioxide than other aircraft.
Boeing, which has had to contend with numerous production difficulties from the 787, displayed the Dreamliner at the Farnborough Air Show in Hampshire earlier this summer.
Copyright Press Association 2010