Hang on, correct me if I'm wrong but isn't the fault on the F135 engine? If so, what part of that do Rolls Royce build?
The Rolls-Royce LiftSystem comprises four major components:[2]
LiftFan
Engine to fan driveshaft
Three-bearing swivel module (3BSM)
Roll posts (two)
The configuration of the propulsion system is somewhat like a vertical ducted turboprop embedded into the center of the aircraft's fuselage.
The three-bearing swivel module (3BSM) is a thrust vectoring nozzle at the tail of the aircraft which allows the main turbofan cruise engine exhaust to pass either straight through with reheat capability for forward propulsion in conventional flight, or to be deflected downward to provide aft vertical lift.
Detached Fueldraulic Line Grounds F-35B
....Officials at Pratt & Whitney, which manages the propulsion system, say the fueldraulic line in the aft portion of the engine compartment had become detached near the bearing swivel module. Rolls Royce provides these modules.