Narrative:

After landing at bos on runway 33L, I cleared the runway to the left at taxiway F. A concerted effort was made to slow in time enough to make this turnoff, due to the remaining surface of the runway being contaminated with ice and snow. The previous landing aircraft, a B757, had reported 'braking action fair.' as we were clearing the runway we were told to 'back taxi runway 22R to 'whiskey' then 'bravo' and parking.' our destination was south cargo ramp. I executed a left turn onto what I believed to be runway 22R, but in actuality was runway 22L. While back-taxiing, I was trying to better orient myself, but was having difficulty doing so due to the snow drifts that had obscured all of the runway and taxiway signs and markings (reference NOTAM bos). I proceeded to pass 3 undistinguishable txwys leading to my right intending to turn onto taxiway west as instructed to do. As I turned onto what I believed to be the correct taxiway I was actually turning onto the remaining 800 ft of the runway 27. Unknown to me, this caused an air carrier flight to abort their takeoff after a 400 ft roll. This information was provided to me from the operations supervisor on duty at the time. At this point was the first notice to me that we had not been on the proper routing.

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Original NASA ASRS Text

Title: A B727-200 CREW, AFTER LNDG ON RWY 33L, TURNED ONTO BOS RWY 22L MISTAKING IT FOR RWY 22R BECAUSE DRIFTING SNOW OBSCURED TXWY RWY MARKERS.

Narrative: AFTER LNDG AT BOS ON RWY 33L, I CLRED THE RWY TO THE L AT TXWY F. A CONCERTED EFFORT WAS MADE TO SLOW IN TIME ENOUGH TO MAKE THIS TURNOFF, DUE TO THE REMAINING SURFACE OF THE RWY BEING CONTAMINATED WITH ICE AND SNOW. THE PREVIOUS LNDG ACFT, A B757, HAD RPTED 'BRAKING ACTION FAIR.' AS WE WERE CLRING THE RWY WE WERE TOLD TO 'BACK TAXI RWY 22R TO 'WHISKEY' THEN 'BRAVO' AND PARKING.' OUR DEST WAS S CARGO RAMP. I EXECUTED A L TURN ONTO WHAT I BELIEVED TO BE RWY 22R, BUT IN ACTUALITY WAS RWY 22L. WHILE BACK-TAXIING, I WAS TRYING TO BETTER ORIENT MYSELF, BUT WAS HAVING DIFFICULTY DOING SO DUE TO THE SNOW DRIFTS THAT HAD OBSCURED ALL OF THE RWY AND TXWY SIGNS AND MARKINGS (REF NOTAM BOS). I PROCEEDED TO PASS 3 UNDISTINGUISHABLE TXWYS LEADING TO MY R INTENDING TO TURN ONTO TXWY W AS INSTRUCTED TO DO. AS I TURNED ONTO WHAT I BELIEVED TO BE THE CORRECT TXWY I WAS ACTUALLY TURNING ONTO THE REMAINING 800 FT OF THE RWY 27. UNKNOWN TO ME, THIS CAUSED AN ACR FLT TO ABORT THEIR TKOF AFTER A 400 FT ROLL. THIS INFO WAS PROVIDED TO ME FROM THE OPS SUPVR ON DUTY AT THE TIME. AT THIS POINT WAS THE FIRST NOTICE TO ME THAT WE HAD NOT BEEN ON THE PROPER ROUTING.

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.