All Nippon Airways is modifying or replacing all 100 engines on its fleet of 50 Boeing 787 Dreamliners because the turbine blades are corroding and cracking. ANA, the launch customer for the 787, chose Rolls Royce engines and as the engines accumulate hours the blade problems have been getting worse. CNN reported the issue has caused ANA Dreamliners to return to their departure airports at least twice and 18 flights have been cancelled. The airline says chemicals in the atmosphere are causing the blade deterioration and it's taking some immediate interim action until the engine replacement program is complete in about three years.
This is a companion discussion topic for the original entry at https://www.avweb.com/ownership/ana-addressing-787-rolls-royce-engine-issues