A contributing factor to having an insufficient spare-parts inventory for the first-ever F-35 deployment in 2017 to Iwakuni, Japan, is a that a significant number of parts have different variants that are in use, according to a Marine Corps official. Lt. Col. Steve Gillette, Marine Fighter Attack Squadron-121 commanding officer, told Inside the Navy during an Aug. 6 interview, since the Joint Strike Fighter program was designed under a concurrency model the officials had to make spare part predictions on...
