Narrative:

Conditions: moderate rain at west end of runway; darkness and poor lighting; runway assignment in the descent. Briefed crew on runway from ypdn commercial chart. Landed at ypdn on runway 29. Tower instructed us to roll to the end; make a 180 turn; backtrack on runway; and exit at taxiway B2. Due to poor visibility out of the side window; because of rain and the lack of adequate lighting; we could not make out the hammerhead turnaround area depicted on the ypdn commercial chart. We made the 180 turn per the instructions box on commercial chart; I rolled to the threshold and made a left 180 turn on the threshold toward the hammerhead. The pavement past the threshold was not mark as an unusable area so we used it to complete our turnaround. Taxied to B2 taxiway where we exited the runway. Later found out the pavement broke up due to it being an unusable area. No damage was caused to the aircraft.

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Original NASA ASRS Text

Title: A B747-400 TAXIED ON YPDN'S RWY 29 OVERRUN WHILE ON A 180 DEG TURN ONTO THAT RWY'S OVERRUN AREA THAT IS NOT INTENDED FOR HEAVY ACFT.

Narrative: CONDITIONS: MODERATE RAIN AT WEST END OF RUNWAY; DARKNESS AND POOR LIGHTING; RUNWAY ASSIGNMENT IN THE DESCENT. BRIEFED CREW ON RUNWAY FROM YPDN COMMERCIAL CHART. LANDED AT YPDN ON RWY 29. TOWER INSTRUCTED US TO ROLL TO THE END; MAKE A 180 TURN; BACKTRACK ON RUNWAY; AND EXIT AT TXWY B2. DUE TO POOR VISIBILITY OUT OF THE SIDE WINDOW; BECAUSE OF RAIN AND THE LACK OF ADEQUATE LIGHTING; WE COULD NOT MAKE OUT THE HAMMERHEAD TURNAROUND AREA DEPICTED ON THE YPDN COMMERCIAL CHART. WE MADE THE 180 TURN PER THE INSTRUCTIONS BOX ON COMMERCIAL CHART; I ROLLED TO THE THRESHOLD AND MADE A LEFT 180 TURN ON THE THRESHOLD TOWARD THE HAMMERHEAD. THE PAVEMENT PAST THE THRESHOLD WAS NOT MARK AS AN UNUSABLE AREA SO WE USED IT TO COMPLETE OUR TURNAROUND. TAXIED TO B2 TAXIWAY WHERE WE EXITED THE RUNWAY. LATER FOUND OUT THE PAVEMENT BROKE UP DUE TO IT BEING AN UNUSABLE AREA. NO DAMAGE WAS CAUSED TO THE AIRCRAFT.

Data retrieved from NASA's ASRS site as of May 2009 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.