Air China and Air China Cargo have signed an agreement with Boeing to expand the use of the airframer's aircraft health management system on their fleets.
Under the deal, another 42 in-service and on-order Boeing 777 and Boeing 747-400 aircraft will be added to a previous agreement, which covers 117 Boeing 737s, says Boeing.
Its aircraft health management system captures and analyses real-time in-flight flying condition data and relays the information to maintenance controllers, it adds.
"That allows the airline to turn a potentially time-consuming and costly maintenance delay into a well-planned and more easily accomplished repair," says Boeing.
Air China operates 10 777-200s and 10 747-400s, while Air China Cargo operates seven 747-400 freighters, including two converted freighters, says Boeing.