Next month, the world's oldest active Boeing 777-200 will turn 30 years old ... N774UA is powered by two Pratt & Whitney PW4000 series engines; it is unclear if the same engines have stayed ...

of thrust. Finally, the PW4000-112, entered service in 1995 with the Boeing 777, delivering a thrust range of 84,000 to 98,000 lbs. This makes the largest variant of the PW4000 one of the most ...