Narrative:

Copilot called phl ground control for taxi instructions, which were to taxi to runway 9L. I taxied out of our parking area straight ahead and crossed 9L, proceeding to 27L. Tower advised us of our mistake and gave us routing back to runway 9L. No other aircraft were moving on the ground at this time, nor were any taking off or landing (unusual for phl). No conflicts existed (I did clear 9L before crossing it). Comments: this is a classic hearback error on my part. The same as the ones I have been reading about in 'callback' for the last many months. I had been flying this same trip for the last several weeks, always using runway 27L for departure. I was prepared to taxi to 27L, I started both engines for the short taxi, I heard (wanted to hear) 27L in the taxi instructions, and I pressed on as normal (?) to 27L! This was my fifth straight day of flying and I feel that my attention and concentration were fading due to many early wake-ups and few long breaks. I was looking forwarded to getting home this same evening. (Reasons for increased vigilance!) comments: I don't know where my copilot's attention was directed at the time we crossed the 9L runway. He was obviously doing something other than paying attention outside the aircraft (as weight and balance, takeoff speeds, etc) or was totally unfamiliar with the taxi route. Even though he read back the taxi clearance, he was unaware of our error until ground controller contacted us. He had made sure that I knew that he was a 'very experienced' pilot, having flown captain for other airlines. I would be interested in reading his NASA report on this incident! He felt the incident was no big deal. I felt totally embarrassed and believed it to be a major error, especially in a 2 man cockpit air carrier!

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Original NASA ASRS Text

Title: UNAUTHORIZED RWY OP ENTRY.

Narrative: COPLT CALLED PHL GND CTL FOR TAXI INSTRUCTIONS, WHICH WERE TO TAXI TO RWY 9L. I TAXIED OUT OF OUR PARKING AREA STRAIGHT AHEAD AND CROSSED 9L, PROCEEDING TO 27L. TWR ADVISED US OF OUR MISTAKE AND GAVE US ROUTING BACK TO RWY 9L. NO OTHER ACFT WERE MOVING ON THE GND AT THIS TIME, NOR WERE ANY TAKING OFF OR LNDG (UNUSUAL FOR PHL). NO CONFLICTS EXISTED (I DID CLR 9L BEFORE XING IT). COMMENTS: THIS IS A CLASSIC HEARBACK ERROR ON MY PART. THE SAME AS THE ONES I HAVE BEEN READING ABOUT IN 'CALLBACK' FOR THE LAST MANY MONTHS. I HAD BEEN FLYING THIS SAME TRIP FOR THE LAST SEVERAL WKS, ALWAYS USING RWY 27L FOR DEP. I WAS PREPARED TO TAXI TO 27L, I STARTED BOTH ENGS FOR THE SHORT TAXI, I HEARD (WANTED TO HEAR) 27L IN THE TAXI INSTRUCTIONS, AND I PRESSED ON AS NORMAL (?) TO 27L! THIS WAS MY FIFTH STRAIGHT DAY OF FLYING AND I FEEL THAT MY ATTN AND CONCENTRATION WERE FADING DUE TO MANY EARLY WAKE-UPS AND FEW LONG BREAKS. I WAS LOOKING FORWARDED TO GETTING HOME THIS SAME EVENING. (REASONS FOR INCREASED VIGILANCE!) COMMENTS: I DON'T KNOW WHERE MY COPLT'S ATTN WAS DIRECTED AT THE TIME WE CROSSED THE 9L RWY. HE WAS OBVIOUSLY DOING SOMETHING OTHER THAN PAYING ATTN OUTSIDE THE ACFT (AS WT AND BAL, TKOF SPDS, ETC) OR WAS TOTALLY UNFAMILIAR WITH THE TAXI RTE. EVEN THOUGH HE READ BACK THE TAXI CLRNC, HE WAS UNAWARE OF OUR ERROR UNTIL GND CTLR CONTACTED US. HE HAD MADE SURE THAT I KNEW THAT HE WAS A 'VERY EXPERIENCED' PLT, HAVING FLOWN CAPT FOR OTHER AIRLINES. I WOULD BE INTERESTED IN READING HIS NASA RPT ON THIS INCIDENT! HE FELT THE INCIDENT WAS NO BIG DEAL. I FELT TOTALLY EMBARRASSED AND BELIEVED IT TO BE A MAJOR ERROR, ESPECIALLY IN A 2 MAN COCKPIT ACR!

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.