Narrative:

We both expected to taxi to runway 26. When I called for taxi we were given a choice between runways 21 and 26. Runway 21 was closer so we requested runway 21 and were cleared to taxi runway 21 and apparently told to hold short runway 26. We crossed runway 26 without conflict but were told after we had crossed the hold short that we had not been cleared. We taxied to runway 21 and took off without incident. I was distracted by setting up the performance computer for the new runway and did not properly back up the captain. Supplemental information from acn 507716: ground told us to taxi to runway 21 via txwys C and east. Then I heard 'hold short of runway 21.' after crossing runway 26 there was some confusion and we thought that ground might have instructed us to hold short of runway 26. There was no conflict.

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Original NASA ASRS Text

Title: AN ACR FLC ON THE WAY TO RWY 21 TAXIES ACROSS RWY 26 WITHOUT CLRNC AT ABQ, NM.

Narrative: WE BOTH EXPECTED TO TAXI TO RWY 26. WHEN I CALLED FOR TAXI WE WERE GIVEN A CHOICE BTWN RWYS 21 AND 26. RWY 21 WAS CLOSER SO WE REQUESTED RWY 21 AND WERE CLRED TO TAXI RWY 21 AND APPARENTLY TOLD TO HOLD SHORT RWY 26. WE CROSSED RWY 26 WITHOUT CONFLICT BUT WERE TOLD AFTER WE HAD CROSSED THE HOLD SHORT THAT WE HAD NOT BEEN CLRED. WE TAXIED TO RWY 21 AND TOOK OFF WITHOUT INCIDENT. I WAS DISTRACTED BY SETTING UP THE PERFORMANCE COMPUTER FOR THE NEW RWY AND DID NOT PROPERLY BACK UP THE CAPT. SUPPLEMENTAL INFO FROM ACN 507716: GND TOLD US TO TAXI TO RWY 21 VIA TXWYS C AND E. THEN I HEARD 'HOLD SHORT OF RWY 21.' AFTER XING RWY 26 THERE WAS SOME CONFUSION AND WE THOUGHT THAT GND MIGHT HAVE INSTRUCTED US TO HOLD SHORT OF RWY 26. THERE WAS NO CONFLICT.

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.