AN LJ24 CREW; DEPARTING LIT; NEGLECTED TO TURN THE PRESSURIZATION SYS ON RESULTING IN; WARNINGS; MASKS DROPPING AND ALL AROUND CONFUSION UNTIL THE SYS WAS RESTORED.

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AS I WAS TAXIING OUT FOR TKOF; I FORGOT TO TURN ON THE PRESSURIZATION. WE TOOK OFF. AS WE WERE CLBING OUT I FELT MY EARS POPPING SEVERAL TIMES TRYING TO TELL ME THE PRESSURIZATION WAS AMISS; BUT I JUST WASN'T LISTENING. WHEN WE WENT THROUGH 10000 FT THE BUZZER WENT OFF AND I'M SAYING TO MYSELF; WHAT IS WRONG? I LOOKED STRAIGHT AT THE CABIN PRESSURE GAUGE AND THOUGHT IT WAS ALL RIGHT. THEN WE WENT THROUGH 14000 FT AND THE MASKS DROPPED AND IT WAS NOW OBVIOUS WHAT WAS GOING ON; BUT I STILL DIDN'T REALIZE THE SWITCH WAS OFF. (THIS WAS WHAT YOU WOULD CALL THE TOTAL CONFUSION STAGE.) NOW WE WERE AT FL210 AND I TOLD CTR THAT WE FORGOT SOMETHING AND NEEDED TO RETURN TO LIT. THEY CLRED US TO TURN AND DSND TO LIT. AS WE WERE GOING DOWN I SAW THE SWITCH AND TURNED ON THE PRESSURIZATION. NOW I TOLD CTR THAT WE FOUND WHAT WE WERE LOOKING FOR AND WANTED TO RESUME OUR TRIP. THEY GAVE US A NEW HEADING AND ALT. IT WAS AT THIS POINT THAT WE DIDN'T HEAR SOME OF THE ALT AND HEADING ASSIGNMENTS PROPERLY. ALL WE HAD TO DO WAS ASK THEM TO REPEAT WHAT THEY SAID AND EVERYTHING WOULD HAVE BEEN FINE. BUT WE WERE STILL SHOOK UP AFTER THE PRESSURIZATION DEAL AND DIDN'T DO ANYTHING RIGHT. IT WAS JUST SOME SLOPPY FLYING ON MY PART. I WAS HEADING 080 DEGS BECAUSE I THOUGHT HE TOLD ME TO; AND THEN THERE WAS SOME CONFUSION ABOUT WHETHER I WAS SUPPOSED TO BE AT FL220 OR FL230 AND THEY SAID I WAS OFF OF MY ASSIGNED ALT AND HEADING; AND I PROBABLY WAS. I WASN'T EVEN SURE EXACTLY WHAT HE HAD TOLD ME. I WAS JUST SHOOK UP AND NOT DOING A GOOD JOB OF FLYING THE AIRPLANE. I THINK THE MORAL OF THE STORY IS DON'T MISS ANYTHING ON THE CHKLIST.