The Air Force has grounded 20 F-35s due to engine issues, leading contractor Pratt & Whitney to take steps to address the engine maintenance backlog at Tinker Air Force Base, OK. Matthew Bromberg, the president of military engines for Pratt & Whitney, said during a Thursday hearing before the House Armed Services tactical air and land forces and readiness subcommittees that F135 engine availability declined in 2020 due to a power module shortage. To address the backlog, the company has...
