A type of Pratt & Whitney engine on Boeing 777s has failed catastrophically three times in a three-year span. Federal investigators are trying to figure out why.

Jet engines generate much more power than automobile engines, with a fully loaded Boeing 777 engine producing about 61,700 horsepower. Turbofan engines function through compression, combustion ...

Asiana Airlines Boeing 777’s crash landing at San Francisco Airport raised additional concerns about the safety of the U.S. plane maker’s best sellers.

Boeing confirms German carrier Lufthansa will be the launch operator for the in-certification 777-9, settling uncertainty ...

For years, Lufthansa and EK have fought over the Boeing 777-9 launch customer title. Ambiguity developed because of shifting ...

The FAA ordered inspections of some Boeing 777s and the plane maker recommended they be grounded, after an engine on a United jet broke apart in flight. WSJ’s Andrew Tangel reports on how Boeing ...

In the initial flight test program, WH003 was used primarily to evaluate flight loads and performance of the auxiliary power unit, as well as avionics and engines. The prototype 777-9, WH001 ...

The programme was already significantly behind schedule when the company in late August last year confirmed it halted 777-9 test flights after discovering that an engine-related structural ...