Narrative:

Ewr ground controller issued as follows: 'taxi outer microphone yankee cross 22R (runway closed) taxi 22L.' we taxied outer uniform yankee and held short of sierra. That is when controller made an issue that he wanted us on microphone because of landing traffic on runway 29 that would exit on uniform or taxi on uniform. Controller sounded quite annoyed. There was no conflict with any other aircraft, but there was a fire truck that had to stop while we were taxiing on uniform (I do not think there was any emergency on the field at that time). I feel what caused this taxi mishap was flight time/duty time. This was the third day of a 4 day trip. I am home every night, but the first day is a 7 hour and 20 min, 9 leg day with 14 hours and 15 mins of duty. The second day was also a 9 leg day, but our duty maxed out at 16 hours. This was a 7 leg day. The incident happened on our last leg back to abe. During the day our taxi instructions were always outer uniform yankee for 22R (it was open 22R). I heard yankee and taxied as we had done for the last several times. If safety is our #1 requirement, why does the FAA continue to drag its feet when it comes to human factors that involve duty and flight time? This incident was minimal, but it proves that we are human and cannot perform at 100%, 100% of the time. Supplemental information from acn 176794: I copied and read our clearance correctly, but was busy doing the taxi checklist when this occurred. I thought the captain was taxiing as we were instructed, but he was too tired to notice he was not.

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Original NASA ASRS Text

Title: COMMUTER FLT CREW TAXIES VIA THE WRONG ROUTE AT EWR. FATIGUE CITED AS MAJOR CONTRIBUTOR.

Narrative: EWR GND CTLR ISSUED AS FOLLOWS: 'TAXI OUTER MIKE YANKEE CROSS 22R (RWY CLOSED) TAXI 22L.' WE TAXIED OUTER UNIFORM YANKEE AND HELD SHORT OF SIERRA. THAT IS WHEN CTLR MADE AN ISSUE THAT HE WANTED US ON MIKE BECAUSE OF LNDG TFC ON RWY 29 THAT WOULD EXIT ON UNIFORM OR TAXI ON UNIFORM. CTLR SOUNDED QUITE ANNOYED. THERE WAS NO CONFLICT WITH ANY OTHER ACFT, BUT THERE WAS A FIRE TRUCK THAT HAD TO STOP WHILE WE WERE TAXIING ON UNIFORM (I DO NOT THINK THERE WAS ANY EMER ON THE FIELD AT THAT TIME). I FEEL WHAT CAUSED THIS TAXI MISHAP WAS FLT TIME/DUTY TIME. THIS WAS THE THIRD DAY OF A 4 DAY TRIP. I AM HOME EVERY NIGHT, BUT THE FIRST DAY IS A 7 HR AND 20 MIN, 9 LEG DAY WITH 14 HRS AND 15 MINS OF DUTY. THE SECOND DAY WAS ALSO A 9 LEG DAY, BUT OUR DUTY MAXED OUT AT 16 HRS. THIS WAS A 7 LEG DAY. THE INCIDENT HAPPENED ON OUR LAST LEG BACK TO ABE. DURING THE DAY OUR TAXI INSTRUCTIONS WERE ALWAYS OUTER UNIFORM YANKEE FOR 22R (IT WAS OPEN 22R). I HEARD YANKEE AND TAXIED AS WE HAD DONE FOR THE LAST SEVERAL TIMES. IF SAFETY IS OUR #1 REQUIREMENT, WHY DOES THE FAA CONTINUE TO DRAG ITS FEET WHEN IT COMES TO HUMAN FACTORS THAT INVOLVE DUTY AND FLT TIME? THIS INCIDENT WAS MINIMAL, BUT IT PROVES THAT WE ARE HUMAN AND CANNOT PERFORM AT 100%, 100% OF THE TIME. SUPPLEMENTAL INFO FROM ACN 176794: I COPIED AND READ OUR CLRNC CORRECTLY, BUT WAS BUSY DOING THE TAXI CHKLIST WHEN THIS OCCURRED. I THOUGHT THE CAPT WAS TAXIING AS WE WERE INSTRUCTED, BUT HE WAS TOO TIRED TO NOTICE HE WAS NOT.

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.