The Lockheed Martin (LMT) F-35 remains grounded, and will most likely miss its other international air shows in the U.K next week, although the Pentagon states that the June malfunction causing an engine fire is likely not a systematic issue.
"We really want to get at the root cause of this to determine exactly what caused it," says Defense Undersecretary Frank Kendall. "There's a growing body of evidence that this may have been an individual situation, not a systemic one. But we don't know that for certain at this point in time."
The fighter jet's engine is manufactured by Pratt & Whitney (UTX).