Lyon said he is still working on the oxygen concentration issue. The problem , Lyon said, is that the Air Force provides the pilots with more oxygen than they need to help them retain consciousness should a worst-case scenario disaster result. But that is complicated by the fact that unlike any other aircraft , the F-22 flies at higher altitudes and higher levels of acceleration – or “High-G.” “We’re working the balance between catastrophic possibility and day-to-day flying,” Lyon said.

But Rep. Jackie Speier (D-Calif.) is not convinced that they have discovered what’s wrong. “I’m just not convinced that we have the answer,” she said. “I think NASA needs to be privy to all the information. And all the reports should be made public.”