F35 maintenance facilities are 6 years behind schedule and fixing a part can take 6 months

F-35 stealth jets are having significantly longer repair times than planned because maintenance facilities are six years behind schedule.

The time to repair a part has averaged 172 days — “twice the program’s objective” — the Government Accountability Office, Congress’s watchdog agency, found. The shortages are “degrading readiness” because the fighter jets “were unable to fly about 22 percent of the time” from January through August for lack of needed parts.

Maintaining the F-35 fleet will become more challenging as the Pentagon prepares for what the manager of the program has called a “tsunami” of new production toward an eventual planned U.S. fleet of 2,456 planes plus more than 700 additional planes to be sold to allies.