A CRJ200 ON THE JFK KENNEDY 1 BREEZY POINT CLB OVERSHOT THE CRI 223 DEG BECAUSE THE CAPT WAS IN THE DR MODE AND A LOUD GEAR WARNING MASKED THE FO'S INPUT.

Narrative

WE TOOK OFF FROM RWY 31L ON THE KENNEDY 1 DEP BREEZY POINT CLB WITH MYSELF AS PNF. THE CAPT CALLED FOR SPD; HDG; HALF BANK; AND AUTOPLT ON FROM 400 TO 600 FT. THE HYDRAULIC 3A PUMP WAS DEFERRED AND ONE OF THE SIDE EFFECTS OF THIS WAS A VERY LOUD 'GEAR DISAGREE' AURAL WARNING DURING GEAR RETRACTION. WE HAD BRIEFED ABOUT IT BEFORE BUT IT WAS STILL DISTRACTING. AS I WAS GETTING THE GEAR AND FLAPS UP AND TRYING TO TIME MY RESPONSE TO ATC SO THEY WOULD NOT HEAR THE LOUD WARNING IN THE BACKGROUND; I NOTICED THE COURSE DEVIATION INDICATOR ON THE CAPT SIDE (HE WAS IN GREEN DATA; I WAS IN WHITE DATA) SHOWING WE WERE L OF THE DESIRED COURSE TO CRI. TOWER ASKED IF WE WERE NAVIGATING TO CARNARSIE; THEN SWITCHED US OVER TO DEP. WE NEVER PASSED DIRECTLY OVER THE VOR; WE WERE STILL L OF COURSE. WHEN WE PASSED SOUTH OF CRI; I QUERIED THE CAPT ABOUT IT AT THE SAME TIME DEP ASKED IF WE WERE OUTBOUND ON THE CRI 223 DEG RADIAL. THE CAPT SWITCHED TO WHITE DATA AND ATTEMPTED TO GET ON COURSE IN NAV MODE; BUT I BELIEVE THE ON COURSE INDICATION IT GAVE WAS WRONG SINCE THERE WAS A 'DR EXCEEDS .5 MINS' MSG ON THE FMS AND BOTH MFD'S. THE CAPT REALIZED THIS AND SWITCHED BACK TO GREEN DATA BUT BY THAT TIME DEP GAVE US A HDG TO TURN TO AND SAID HE SHOWED US WELL L OF THE CRI 223 DEG RADIAL. THE CONTRIBUTING FACTORS WERE MAKING THE TURN TOWARDS CRI IN HALF BANK AND HDG MODE WHEN WE COULD HAVE USED FULL BANK AND NAV MODE. NEXT WAS THE DISTRACTING AURAL WARNING DURING THE HIGHEST WORKLOAD SEGMENT OF THE FLT. I FEEL I COULD HAVE BEEN OF MORE HELP TO MY CAPT IF HE COULD HAVE HEARD ME OVER AND WASN'T DISTRACTED BY THAT AURAL (DISTRACTED ME AS WELL). LASTLY; WE BOTH SHOULD HAVE NOTICED THAT ENGAGING NAV MODE IN WHITE DATA WOULDN'T WORK WITH THE 'DR' MESSAGE.