Narrative:

Misunderstood taxi clearance from philly ground. Thought we were cleared all the way to 27R. Crossed runway 17 on taxiway east. Ground controller said no problem guys but you were to hold short of runway 17. No conflicts. Busy time of morning. Full taxi clearance was not read back just aircraft call sign. Callback conversation with reporter revealed the following information: reporter states major problem was that captain did not really hear the clearance. Instructions very clear to hold short of 17. When approaching runway reporter was sure captain would stop as he was taxiing slowly. When realizing not stopping first officer told captain we need to hold short. Captain said no we're cleared to 27R, and continued. At this time ground commented on hold short instructions and said 'it's ok, no conflict.' reporter stated he was very angry that captain ignored his input. In conversation after the flight it appeared captain really not alert. There was no hurry to cross as there was a long line of aircraft waiting for takeoff. Both captain and first officer claimed poor sleep. Reporter states this is the worst of schedules for him. East coast short layover for mid west crew. Trying to get to sleep 2 hours earlier than normal. Both pilots looked for traffic prior to crossing. Had there been traffic reporter would have stood on the brakes, not had a discussion.

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Original NASA ASRS Text

Title: ACR CROSSES RWY WHEN CLRED TO HOLD SHORT.

Narrative: MISUNDERSTOOD TAXI CLRNC FROM PHILLY GND. THOUGHT WE WERE CLRED ALL THE WAY TO 27R. CROSSED RWY 17 ON TAXIWAY E. GND CTLR SAID NO PROBLEM GUYS BUT YOU WERE TO HOLD SHORT OF RWY 17. NO CONFLICTS. BUSY TIME OF MORNING. FULL TAXI CLRNC WAS NOT READ BACK JUST ACFT CALL SIGN. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: RPTR STATES MAJOR PROBLEM WAS THAT CAPT DID NOT REALLY HEAR THE CLRNC. INSTRUCTIONS VERY CLR TO HOLD SHORT OF 17. WHEN APCHING RWY RPTR WAS SURE CAPT WOULD STOP AS HE WAS TAXIING SLOWLY. WHEN REALIZING NOT STOPPING FO TOLD CAPT WE NEED TO HOLD SHORT. CAPT SAID NO WE'RE CLRED TO 27R, AND CONTINUED. AT THIS TIME GND COMMENTED ON HOLD SHORT INSTRUCTIONS AND SAID 'IT'S OK, NO CONFLICT.' RPTR STATED HE WAS VERY ANGRY THAT CAPT IGNORED HIS INPUT. IN CONVERSATION AFTER THE FLT IT APPEARED CAPT REALLY NOT ALERT. THERE WAS NO HURRY TO CROSS AS THERE WAS A LONG LINE OF ACFT WAITING FOR TKOF. BOTH CAPT AND FO CLAIMED POOR SLEEP. RPTR STATES THIS IS THE WORST OF SCHEDULES FOR HIM. E COAST SHORT LAYOVER FOR MID W CREW. TRYING TO GET TO SLEEP 2 HRS EARLIER THAN NORMAL. BOTH PLTS LOOKED FOR TFC PRIOR TO XING. HAD THERE BEEN TFC RPTR WOULD HAVE STOOD ON THE BRAKES, NOT HAD A DISCUSSION.

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.