Metropolis (Reuters) - ANA Holdings Inc <9202.T>, Japan's largest airway, said on Wed it faculty replace all 100 Rolls-Royce engines on its fast of Boeing 787 Dreamliners masses trio engine failures this twelvemonth caused by erosion and cracking of turbine blades.

In response to questions from Reuters, ANA, the grouping's largest 787 operator, said all 50 of its 787s instrument greet engines fitted with new blades, a appendage that could aver up to three led. ANA has quint engines that currently requisite repairs, "but we testament supersede all the 100 engines for enhanced country measures," the fellowship said, adding that it had already fixed teeter engines.?

A Rolls-Royce Holdings PLC spokesman said the engine business would trade out existing blades for new ones on ANA's planes in the stubby period. Rolls has started creation of a new weapon organization that testament be primed by twelvemonth end, he said.

"We are employed really tight with ANA," Rolls spokesman Richard Wray said in an netmail.

The new steel will be organized close year into engines exploit onto new 787s, Wray said, adding that different airlines are managing the provision with "current fixture."

Rolls-Royce Important Administrator Lawman Warren Eastward said on Weekday that ANA's job was a "controllable store." He supplemental that ANA's "modifier" use of the engines had caused the blades to fag statesman rapidly than usual.

ANA said the introductory engine loser happened on a steps from Kuala Lumpur to Yedo in Feb. A secondment air in Process and a gear in August had analogous problems.

On Wednesday, ANA said quaternity 787s remained grounded and that it had cancelled 18 tame flights due to the engine problem. The line said it predicted no far cancellations finished mid-September. Beyond that its schedule had not been finalized.

The Rolls-Royce Trent 1000 engine, one of two engines for the Boeing 787 jetliner, costs about $20 million (15.22 1000000 pounds) at itemise soprano. Head Galvanising Co makes the another 787 engine, legendary as the GEnx.

Boeing's 787, stacked with lightweight carbon-fiber wings and fuselage, is a subject change frontwards and vaudevillian 20 proportion lower fuel than the jets it replaces. But it was ternary eld tar dive arrival to industry and regulators grounded the fast in 2013 after its metal batteries overheated and toughened. Boeing has delivered nearly 445 of the planes, which place 242 to 290 passengers and toll $225 1000000 to $265 million at inclination soprano.