I was actually thinking of this recently... aboot time.
but the T6s are grounded now

Originally Posted By CFII:
but the T6s are grounded now

Details!
Never mind.
Seen (and heard!) a few here at Tinker AFB, OK this week.

Tyndall's 22s are not grounded.
Originally Posted By 2A373:
Tyndall's 22s are not grounded.
http://www.wired.com/dangerroom/2011/10/stealth-fighters-oxygen-woes/?mbid=ob_ppc_dangerroom
Update, 5:42 pm, October 25: The Virginia Raptors have been cleared to resume flying, meaning the entire F-22 fleet is back in the air for now. But the oxygen problem remains unresolved — and could easily prompt another grounding at any time.
Originally Posted By SnoopisTDI:
They've been flying the hell out of them at Langley.
On Nov. 8th one of them reported having an oxygen problem while out in the training areas and had to descend to 1000ft.