Narrative:

As we began our taxi, kennedy ground cleared us 'right inner, left hotel, right on runway 22, hold short of 31L on runway 22.' I read it back, and the captain repeated the readback. As we taxied down runway 22, there was 1 aircraft on takeoff roll. There were no other aircraft in the area, taxiing or holding short for departure ahead of us. Checklists were done. I would say that we were taxiing at a reasonable modest speed, being on a runway it seemed slow enough. As we approached runway 31L, it seemed that we were going a little too fast to hold short comfortably, so I said to the captain, 'this is 31L coming up, we're supposed to hold short.' he hesitated for a moment, looked left, then right, then applied what I would call normal braking. When we came to a stop, the nose of the aircraft was just slightly out on the runway. When he realized where we were, he immediately added power, crossed the runway to leave it clear. There was no conflict, no one on final, or anywhere close. Ground control saw what we had done, and cleared us for a 180 degree turn on runway 22. Tower cleared us for takeoff and we departed. First of all, if the captain had applied brakes immediately without looking around, or applied brakes more firmly, we could have stopped well short. I believe he was looking for a hold line or runway marker as expected when on a taxiway. Being on the centerline of runway 22 there was no hold line, and the runway 31L marker, which is located to be seen from the taxiway as well to the side. I am not sure that he realized where runway 31L was until we were fully stopped. I do not know why he elected to cross the runway without clearance, nor did I have time to request it before we were across.

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Original NASA ASRS Text

Title: LGT TAXIES WITH NOSE OVER EDGE OF RWY WHERE TOLD TO HOLD. SEEING POS, CAPT TAXIES ACROSS RWY. CTLR CLRS FOR 180 DEG TURN AND TKOF.

Narrative: AS WE BEGAN OUR TAXI, KENNEDY GND CLRED US 'RIGHT INNER, L HOTEL, R ON RWY 22, HOLD SHORT OF 31L ON RWY 22.' I READ IT BACK, AND THE CAPT REPEATED THE READBACK. AS WE TAXIED DOWN RWY 22, THERE WAS 1 ACFT ON TKOF ROLL. THERE WERE NO OTHER ACFT IN THE AREA, TAXIING OR HOLDING SHORT FOR DEP AHEAD OF US. CHKLISTS WERE DONE. I WOULD SAY THAT WE WERE TAXIING AT A REASONABLE MODEST SPD, BEING ON A RWY IT SEEMED SLOW ENOUGH. AS WE APCHED RWY 31L, IT SEEMED THAT WE WERE GOING A LITTLE TOO FAST TO HOLD SHORT COMFORTABLY, SO I SAID TO THE CAPT, 'THIS IS 31L COMING UP, WE'RE SUPPOSED TO HOLD SHORT.' HE HESITATED FOR A MOMENT, LOOKED L, THEN R, THEN APPLIED WHAT I WOULD CALL NORMAL BRAKING. WHEN WE CAME TO A STOP, THE NOSE OF THE ACFT WAS JUST SLIGHTLY OUT ON THE RWY. WHEN HE REALIZED WHERE WE WERE, HE IMMEDIATELY ADDED PWR, CROSSED THE RWY TO LEAVE IT CLR. THERE WAS NO CONFLICT, NO ONE ON FINAL, OR ANYWHERE CLOSE. GND CTL SAW WHAT WE HAD DONE, AND CLRED US FOR A 180 DEG TURN ON RWY 22. TWR CLRED US FOR TKOF AND WE DEPARTED. FIRST OF ALL, IF THE CAPT HAD APPLIED BRAKES IMMEDIATELY WITHOUT LOOKING AROUND, OR APPLIED BRAKES MORE FIRMLY, WE COULD HAVE STOPPED WELL SHORT. I BELIEVE HE WAS LOOKING FOR A HOLD LINE OR RWY MARKER AS EXPECTED WHEN ON A TAXIWAY. BEING ON THE CTRLINE OF RWY 22 THERE WAS NO HOLD LINE, AND THE RWY 31L MARKER, WHICH IS LOCATED TO BE SEEN FROM THE TAXIWAY AS WELL TO THE SIDE. I AM NOT SURE THAT HE REALIZED WHERE RWY 31L WAS UNTIL WE WERE FULLY STOPPED. I DO NOT KNOW WHY HE ELECTED TO CROSS THE RWY WITHOUT CLRNC, NOR DID I HAVE TIME TO REQUEST IT BEFORE WE WERE ACROSS.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.