Narrative:

During taxi out from gate, we were cleared to runway 1R via txwys a, G, and B. We briefed the route referencing our airport pages -- as the captain began taxiing I already had our takeoff data on request (prior to pushback) and received an ACARS message from dispatch that runway 1R was locked out. I felt the captain was comfortable with our taxi instructions and knew we had a short taxi so I went 'heads down' to address getting our takeoff data for runway 1R from dispatch via ACARS. (I knew that runway 1R was available since we were just cleared to it -- I also was aware that it had previously been notamed out of service from our previous inbound leg.) during this time period I heard the captain call 'clear left' at which time I instinctively looked up and out to the right -- I saw an aircraft on the runway in position, lights on but not moving and responded 'clear right' as we were crossing, at which time he realized the error and he stated as such, which is when it hit me. We crossed an active runway without clearance. Contributing factors: poor judgement -- my failure to back up the captain's taxiing due to my rushing to get our takeoff data in a timely fashion so as to not delay our takeoff. Fatigue -- the late night departure for a back side of the clock flight. We had our airport diagrams out and in view and briefed the taxi route per company policy. We simply missed the right turn onto taxiway B and crossed runway 1R at taxiway G. The lesson here is to keep 'heads up' at all times while the aircraft is maneuvering. Supplemental information from acn 613705: before movement of the aircraft, we briefed the taxi route then started the taxi. I called ground control and told them we had missed the right turn on to taxiway B. I called the tower and told him what we had done and apologized for the mistake. He said there had not been a conflict with another aircraft and they were not going to pursue the matter. I somehow got in my mind that I had to cross runway 1L to get to taxiway B. A couple of factors come into play here. Our original taxi clearance was txwys a, G, B to runway 1R. Taxiway B does not go to runway 1R. If the clearance would have been txwys a, G, B, a, it might have cued me to stay on the west side of runway 1L. The other factor was the runway 1R being locked out by our dispatch. It diverted the attention of the first officer inside the cockpit. 4 eyes instead of 2 perhaps would have caught the error before it happened.

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Original NASA ASRS Text

Title: RWY INCURSION DURING A NIGHT OP WHEN A TAXIING A319 FLT CREW CROSSES RWY 1L WITHOUT CLRNC WITH AN ACFT IN POS AND HOLD AT SFO, CA.

Narrative: DURING TAXI OUT FROM GATE, WE WERE CLRED TO RWY 1R VIA TXWYS A, G, AND B. WE BRIEFED THE RTE REFING OUR ARPT PAGES -- AS THE CAPT BEGAN TAXIING I ALREADY HAD OUR TKOF DATA ON REQUEST (PRIOR TO PUSHBACK) AND RECEIVED AN ACARS MESSAGE FROM DISPATCH THAT RWY 1R WAS LOCKED OUT. I FELT THE CAPT WAS COMFORTABLE WITH OUR TAXI INSTRUCTIONS AND KNEW WE HAD A SHORT TAXI SO I WENT 'HEADS DOWN' TO ADDRESS GETTING OUR TKOF DATA FOR RWY 1R FROM DISPATCH VIA ACARS. (I KNEW THAT RWY 1R WAS AVAILABLE SINCE WE WERE JUST CLRED TO IT -- I ALSO WAS AWARE THAT IT HAD PREVIOUSLY BEEN NOTAMED OUT OF SVC FROM OUR PREVIOUS INBOUND LEG.) DURING THIS TIME PERIOD I HEARD THE CAPT CALL 'CLR L' AT WHICH TIME I INSTINCTIVELY LOOKED UP AND OUT TO THE R -- I SAW AN ACFT ON THE RWY IN POS, LIGHTS ON BUT NOT MOVING AND RESPONDED 'CLR R' AS WE WERE XING, AT WHICH TIME HE REALIZED THE ERROR AND HE STATED AS SUCH, WHICH IS WHEN IT HIT ME. WE CROSSED AN ACTIVE RWY WITHOUT CLRNC. CONTRIBUTING FACTORS: POOR JUDGEMENT -- MY FAILURE TO BACK UP THE CAPT'S TAXIING DUE TO MY RUSHING TO GET OUR TKOF DATA IN A TIMELY FASHION SO AS TO NOT DELAY OUR TKOF. FATIGUE -- THE LATE NIGHT DEP FOR A BACK SIDE OF THE CLOCK FLT. WE HAD OUR ARPT DIAGRAMS OUT AND IN VIEW AND BRIEFED THE TAXI RTE PER COMPANY POLICY. WE SIMPLY MISSED THE R TURN ONTO TXWY B AND CROSSED RWY 1R AT TXWY G. THE LESSON HERE IS TO KEEP 'HEADS UP' AT ALL TIMES WHILE THE ACFT IS MANEUVERING. SUPPLEMENTAL INFO FROM ACN 613705: BEFORE MOVEMENT OF THE ACFT, WE BRIEFED THE TAXI RTE THEN STARTED THE TAXI. I CALLED GND CTL AND TOLD THEM WE HAD MISSED THE R TURN ON TO TXWY B. I CALLED THE TWR AND TOLD HIM WHAT WE HAD DONE AND APOLOGIZED FOR THE MISTAKE. HE SAID THERE HAD NOT BEEN A CONFLICT WITH ANOTHER ACFT AND THEY WERE NOT GOING TO PURSUE THE MATTER. I SOMEHOW GOT IN MY MIND THAT I HAD TO CROSS RWY 1L TO GET TO TXWY B. A COUPLE OF FACTORS COME INTO PLAY HERE. OUR ORIGINAL TAXI CLRNC WAS TXWYS A, G, B TO RWY 1R. TXWY B DOES NOT GO TO RWY 1R. IF THE CLRNC WOULD HAVE BEEN TXWYS A, G, B, A, IT MIGHT HAVE CUED ME TO STAY ON THE W SIDE OF RWY 1L. THE OTHER FACTOR WAS THE RWY 1R BEING LOCKED OUT BY OUR DISPATCH. IT DIVERTED THE ATTN OF THE FO INSIDE THE COCKPIT. 4 EYES INSTEAD OF 2 PERHAPS WOULD HAVE CAUGHT THE ERROR BEFORE IT HAPPENED.

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.