Japanese carrier All Nippon Airways (ANA) was forced to disrupt its domestic service the week of July 24, 2012 when 5 of its Boeing 787 Dreamliner jets were grounded due to mechanical problems.
Rolls Royce, manufacturer of the Dreamliner’s Trent 1000 engines, discovered corrosion in the gearbox, necessitating the replacement of 7 engines in ANA’s Dreamliner fleet.
Two of the grounded aircraft have since returned to duty.
The Dreamliner’s construction – mostly built with lightweight composite materials – offers passengers increased comforts and airline a more fuel efficient airplane on long-haul routes.
However, many of its design features have not been extensively tested in service, which leads to hiccups as the planes enter daily service.