The incident at Langley has many Pentagon watchers shaking their heads. Tom Christie, the former director of testing and evaluation for the DOD, calls the F-22 incident at Langley "incredible." "God knows what'll happen next," said Christie, who points out that the F-22 has about two million lines of code in its software system. "This thing is so software intensive. You can't check out every line of code."
Now, just for the sake of comparison, Windows XP, one of the most common computer operating systems, contains about 45 million lines of code. But if any of that code fails, then the computer that's running it simply stops working. It won't cause that computer to fall out of the sky. If any of the F-22's two million lines of computer code go bad, then the pilot can die, or, perhaps, just get trapped in the cockpit.
One analyst inside the Pentagon who has followed the F-22 for years said that "Everyone's incredulous. They're asking can this really have happened?" As for Lockheed Martin, the source said, "Whatever the problem was, the people who built it should know how to open the canopy."