Narrative:

Taxi for takeoff at trondheim, norway, runway 27. Instructed to hold short of runway. We needed to back taxi and turn around. First officer suddenly noticed runway was too narrow to turn around on. Temporarily forgetting about the hold short clearance, I taxied closer to the runway to see how we were going to turn around. Before entering the runway, the first officer saved me by stating 'me didn't think we had clearance to taxi into position yet.' I hit the brakes. He was right. My mind was occupied with the turn, and convinced myself we were cleared into position. Loss of concentration from long duty day and lots of flying in last 4-5 days.

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Original NASA ASRS Text

Title: A NEAR RWY INCURSION WHEN THE PIC OF A TAXIING B747-200 IS DISTR WITH THE PROB OF TURNING HIS ACFT AROUND ON A NARROW RWY, LESS THAN 150 FT WIDE AT ENVA, FO.

Narrative: TAXI FOR TKOF AT TRONDHEIM, NORWAY, RWY 27. INSTRUCTED TO HOLD SHORT OF RWY. WE NEEDED TO BACK TAXI AND TURN AROUND. FO SUDDENLY NOTICED RWY WAS TOO NARROW TO TURN AROUND ON. TEMPORARILY FORGETTING ABOUT THE HOLD SHORT CLRNC, I TAXIED CLOSER TO THE RWY TO SEE HOW WE WERE GOING TO TURN AROUND. BEFORE ENTERING THE RWY, THE FO SAVED ME BY STATING 'ME DIDN'T THINK WE HAD CLRNC TO TAXI INTO POS YET.' I HIT THE BRAKES. HE WAS RIGHT. MY MIND WAS OCCUPIED WITH THE TURN, AND CONVINCED MYSELF WE WERE CLRED INTO POS. LOSS OF CONCENTRATION FROM LONG DUTY DAY AND LOTS OF FLYING IN LAST 4-5 DAYS.

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.