Three hours later, NASA officials told the crew that everything was "OK" for what they called TLI, or trans-lunar injection.

VOA: special.2009.07.08

He's not breathing and we're trying to pump him but he's not -- " "OK,OK.How old is he?"

VOA: special.2009.06.27

Everything was "A-OK" for an orbital flight.

VOA: special.2009.06.17

Then there is the expression A-OK.

VOA: special.2010.02.28