Narrative:

We were instructed to taxi from the gates to runway 32L full length. Instructions were to taxi by way of txwys B, F, M, hold short of runway 32L on taxiway M. We were just short of taxiway T heading west on taxiway M, when the ground controller asked if we could make a left 140 degree turn onto taxiway T and clear an aircraft that was in front of us holding short of runway 32L. We decided that we had wingtip clearance and told the ground controller that we could make the turn. He then instructed us to make the left turn onto taxiway T, hold short of runway 9R and switch to the tower. I was concerned with the wingtip clearance on my right side while we made the turn and also switching to the tower frequency. As I looked forward, I realized that we had crossed over the hold short line. I advised the captain and he stopped the aircraft. We both realized the problem occurred just as we made the turn onto taxiway T. It was a 130-140 degree turn and the hold short line was already beneath the aircraft just before the turn was made an unusually long distance from the actual runway. This was not a normal taxi route for us to this runway, and the factors of aircraft clearance and switching frequencys all at the same time added in our inability to locate the hold short line. Supplemental information from acn 477337: I saw there was approximately 200 ft of taxiway prior to runway 9R on taxiway T, so we said we could comply. We made the turn and started looking for the hold short line. Not seeing the hold short line but seeing runway 9R was approximately 75 ft in front of us, we stopped. Shortly thereafter, tower control instructed an aircraft landing runway 9R to go around. I then determined that the real reason for the ground controller's query if we could follow his turn to hold short was because the hold short line was just 10-20 ft off our side and would require a turn of approximately 110 degrees and a quick stop. I did not realize the hold short line was so far from runway 9R and just off our side while on taxiway M. Also, the red runway signage for runway 9R was hidden from view by our nose during the turn. I estimate our aircraft stopped with the tail over or just past the hold short line. If the ground controller had mentioned his reason for the query or had kept us on his frequency until our turn was completed, this incursion would have been averted. Nonetheless, I should have idented the hold short point prior to starting the turn onto taxiway T.

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Original NASA ASRS Text

Title: AN A319 FLC CROSSES OVER THE HOLD SHORT LINE FOR RWY 9R WHILE ATTEMPTING TO COMPLY WITH A CHANGE IN TAXI ROUTING INSTIGATED BY GND CTL AT ORD, IL.

Narrative: WE WERE INSTRUCTED TO TAXI FROM THE GATES TO RWY 32L FULL LENGTH. INSTRUCTIONS WERE TO TAXI BY WAY OF TXWYS B, F, M, HOLD SHORT OF RWY 32L ON TXWY M. WE WERE JUST SHORT OF TXWY T HDG W ON TXWY M, WHEN THE GND CTLR ASKED IF WE COULD MAKE A L 140 DEG TURN ONTO TXWY T AND CLR AN ACFT THAT WAS IN FRONT OF US HOLDING SHORT OF RWY 32L. WE DECIDED THAT WE HAD WINGTIP CLRNC AND TOLD THE GND CTLR THAT WE COULD MAKE THE TURN. HE THEN INSTRUCTED US TO MAKE THE L TURN ONTO TXWY T, HOLD SHORT OF RWY 9R AND SWITCH TO THE TWR. I WAS CONCERNED WITH THE WINGTIP CLRNC ON MY R SIDE WHILE WE MADE THE TURN AND ALSO SWITCHING TO THE TWR FREQ. AS I LOOKED FORWARD, I REALIZED THAT WE HAD CROSSED OVER THE HOLD SHORT LINE. I ADVISED THE CAPT AND HE STOPPED THE ACFT. WE BOTH REALIZED THE PROB OCCURRED JUST AS WE MADE THE TURN ONTO TXWY T. IT WAS A 130-140 DEG TURN AND THE HOLD SHORT LINE WAS ALREADY BENEATH THE ACFT JUST BEFORE THE TURN WAS MADE AN UNUSUALLY LONG DISTANCE FROM THE ACTUAL RWY. THIS WAS NOT A NORMAL TAXI RTE FOR US TO THIS RWY, AND THE FACTORS OF ACFT CLRNC AND SWITCHING FREQS ALL AT THE SAME TIME ADDED IN OUR INABILITY TO LOCATE THE HOLD SHORT LINE. SUPPLEMENTAL INFO FROM ACN 477337: I SAW THERE WAS APPROX 200 FT OF TXWY PRIOR TO RWY 9R ON TXWY T, SO WE SAID WE COULD COMPLY. WE MADE THE TURN AND STARTED LOOKING FOR THE HOLD SHORT LINE. NOT SEEING THE HOLD SHORT LINE BUT SEEING RWY 9R WAS APPROX 75 FT IN FRONT OF US, WE STOPPED. SHORTLY THEREAFTER, TWR CTL INSTRUCTED AN ACFT LNDG RWY 9R TO GO AROUND. I THEN DETERMINED THAT THE REAL REASON FOR THE GND CTLR'S QUERY IF WE COULD FOLLOW HIS TURN TO HOLD SHORT WAS BECAUSE THE HOLD SHORT LINE WAS JUST 10-20 FT OFF OUR SIDE AND WOULD REQUIRE A TURN OF APPROX 110 DEGS AND A QUICK STOP. I DID NOT REALIZE THE HOLD SHORT LINE WAS SO FAR FROM RWY 9R AND JUST OFF OUR SIDE WHILE ON TXWY M. ALSO, THE RED RWY SIGNAGE FOR RWY 9R WAS HIDDEN FROM VIEW BY OUR NOSE DURING THE TURN. I ESTIMATE OUR ACFT STOPPED WITH THE TAIL OVER OR JUST PAST THE HOLD SHORT LINE. IF THE GND CTLR HAD MENTIONED HIS REASON FOR THE QUERY OR HAD KEPT US ON HIS FREQ UNTIL OUR TURN WAS COMPLETED, THIS INCURSION WOULD HAVE BEEN AVERTED. NONETHELESS, I SHOULD HAVE IDENTED THE HOLD SHORT POINT PRIOR TO STARTING THE TURN ONTO TXWY T.

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.