NEW CAPT TAXIED OVER RWY END LIGHT AT JFK.

Narrative

IN AN EFFORT TO AVOID OVERHEATED BRAKES; THE CAPT ELECTED TO ROLL TO THE END OF THE RWY AND EXIT TO THE L SINCE THE COMPANY'S CARGO FACILITY WAS ON THAT SIDE OF THE AIRFIELD. (THE CAPT HAD JUST RECENTLY UPGRADED TO THE B747 AND WAS NOT OVERLY FAMILIAR WITH THE JFK ARPT.) AS THE ACFT NEARED THE END OF THE RWY AT A NORMAL TAXI SPD; THE CAPT BECAME DISTR LOOKING FOR A TXWY EXIT THAT; AS IT TURNED OUT; DID NOT EXIST. TO ADD TO THE DISTR; A PERPENDICULAR TXWY WITH BLUE TXWY LIGHTING WAS VISIBLE JUST BEYOND THE END OF THE RWY. IN THE ENSUING SECONDS OF TRYING TO DETERMINE HOW TO EXIT THE RWY; THE CAPT FAILED TO NOTICE THE RWY END LIGHTS DISAPPEAR UNDER THE NOSE OF THE ACFT. (THE FO; MEANWHILE; WAS TALKING TO TWR AND REFERRING TO HIS ARPT DIAGRAM TO RESOLVE OUR SIT AND WAS; THEREFORE; NOT IMMEDIATELY AWARE OF OUR TENUOUS POS.) FINALLY REALIZING THAT THERE WAS NO APPARENT TURNOFF AVAILABLE; THE ACFT WAS STOPPED BUT NOT BEFORE THE NOSE GEAR HAD PASSED BEYOND THE RWY END; DAMAGING ONE RWY END LIGHT. A TUG WAS SUMMONED; AND THE ACFT WAS TOWED TO THE CARGO FACILITY HAVING SUSTAINED NO DAMAGE.