LONDON, Dec 19 (Reuters) - IAG-owned British Airways

has had to make additional changes to its schedules

over engine issues, it told Reuters on Thursday after several

media outlets reported that it has cancelled summer flights from

London's Heathrow to Abu Dhabi.

The airline had already cut long-haul flights this year

because of delays in the delivery of engines and parts from

Rolls-Royce.

Additional changes to schedules have been made over an issue

involving 1,000 engines for its Boeing 787 aircraft,

British Airways said on Thursday without confirming the reported

cut to the Abu Dhabi-Heathrow route.

"We've taken this action because we do not believe the issue

will be solved quickly, and we want to offer our customers the

certainty they deserve for their travel plans," the airline

said.