"Fun fact" two of the worst accidents with the Saab JAS-39 Gripen were blamed on software faults.

Sources: http://en.wikipedia.org/wiki/Saab_JAS_39_Gripen#cite_ref-FOO...

http://www.flightglobal.com/FlightPDFArchive/1989/1989%20-%2...

Yeah, Pilot Induced Oscillation. It was actually the same pilot too. Not to blame him though, of course.

Looking at the statistics though, the Gripen has been in very few accidents compared to other fighter jets.

It isnt the plane it is the vest. They were using a standard vest for a plane that can do things previous generations could not. Vector thrusting and some massive amount of thrust provided by those snazzy pratt and whitney F119 turbofans.

It was a problem with the Breathing Regulator/Anti-G (BRAG) valve supporting the Combat Edge vest, for F-22 pilots. F-16 pilots use almost the same vest, but the regulator and anti-G inflation valve setup is different.

The F-22 can sustain high Gs for longer which exacerbated the problem with the BRAG valve.

Thanks I wanst sure on the technical details. Nice to see the problem has been isolated to the valve.