Narrative:

I misheard the clearance and began to cross runway 27R. At that exact instant, the controller cleared us to cross runway 27R and follow an air carrier. I misunderstood clearance and first officer was occupied reading before takeoff checklist. Supplemental information from acn 315936: taxiing aircraft from air carrier concourse to runway 27L. Original instructions were to taxi txwys H to east, hold short runway 27R and read back by copilot. Captain taxiing on taxiway east to follow 757. We followed the 757 across runway 27R and, as we entered runway, ground read us a clearance to cross the runway.

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Original NASA ASRS Text

Title: FLC FAILED TO HEED HOLD SHORT INSTRUCTIONS. ATCT LCL CTLR ISSUED A NEW CLRNC TO CROSS AS ACFT CROSSED THE RWY. UNAUTH RWY XING.

Narrative: I MISHEARD THE CLRNC AND BEGAN TO CROSS RWY 27R. AT THAT EXACT INSTANT, THE CTLR CLRED US TO CROSS RWY 27R AND FOLLOW AN ACR. I MISUNDERSTOOD CLRNC AND FO WAS OCCUPIED READING BEFORE TKOF CHKLIST. SUPPLEMENTAL INFO FROM ACN 315936: TAXIING ACFT FROM ACR CONCOURSE TO RWY 27L. ORIGINAL INSTRUCTIONS WERE TO TAXI TXWYS H TO E, HOLD SHORT RWY 27R AND READ BACK BY COPLT. CAPT TAXIING ON TXWY E TO FOLLOW 757. WE FOLLOWED THE 757 ACROSS RWY 27R AND, AS WE ENTERED RWY, GND READ US A CLRNC TO CROSS THE RWY.

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.