Narrative:

Upon landing runway 27 at bos during the rollout, ATC gave instructions to 'roll to the end, right turn off at (), hold short of 22L.' I had made the landing and had just turned control of the aircraft to the captain when the instructions were given--approximately 80 KTS. We both interpreted this to continue down the runway to the end of the pavement then turn right, not the normal turnoff for runway 27 at bos, which is prior to the stopway. Upon entering the stopway a very urgent call from the tower was directed to us to now turn left to exit the runway, which had us totally confused. We finally made it to the end of the pavement in the stopway, turned right and called ground control. We were instructed to call the tower supervisor upon reaching the gate, which we did. Apparently the controller did not mean to use the stopway, but roll to the end of the runway and turn right. The use of the phrase 'roll to the end' had us thinking to go to the end of the pavement in the stopway. Had the controller said nothing, we would have exited the runway in the normal manner prior to the stopway. In addition, there is a note on the airport diagram that the stopway may only be used with ATC permission, a permission we thought we had been granted when told to 'roll to the end.' the tower supervisor was also concerned because in 'rolling to the end' we crossed the stopway for runway 22L, the runway we were told to hold short of. My point is, if the stopway for 27 was not considered the runway, is the stopway for 22L considered part of that runway? The landing rollout is a very busy time in the front end of the aircraft--a time when rapid fire instructions are difficult to analyze and act on. We don't have the time to go heads down to look at the airport diagram, one the controller has memorized since they deal with only 1 airport, and decode the instructions. This was a case of over control; had we been left alone we would have turned off the runway at the spot the controller wanted--as we had been doing all month on runway 27.

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Original NASA ASRS Text

Title: FLT CREW OF LGT LNDG RWY 27 AT BOS CLEARED TO THE END. FLT CREW TAXIED INTO OVERRUN TRANSGRESSING RWY 22R.

Narrative: UPON LNDG RWY 27 AT BOS DURING THE ROLLOUT, ATC GAVE INSTRUCTIONS TO 'ROLL TO THE END, RIGHT TURN OFF AT (), HOLD SHORT OF 22L.' I HAD MADE THE LNDG AND HAD JUST TURNED CTL OF THE ACFT TO THE CAPT WHEN THE INSTRUCTIONS WERE GIVEN--APPROX 80 KTS. WE BOTH INTERPRETED THIS TO CONTINUE DOWN THE RWY TO THE END OF THE PAVEMENT THEN TURN RIGHT, NOT THE NORMAL TURNOFF FOR RWY 27 AT BOS, WHICH IS PRIOR TO THE STOPWAY. UPON ENTERING THE STOPWAY A VERY URGENT CALL FROM THE TWR WAS DIRECTED TO US TO NOW TURN LEFT TO EXIT THE RWY, WHICH HAD US TOTALLY CONFUSED. WE FINALLY MADE IT TO THE END OF THE PAVEMENT IN THE STOPWAY, TURNED RIGHT AND CALLED GND CTL. WE WERE INSTRUCTED TO CALL THE TWR SUPVR UPON REACHING THE GATE, WHICH WE DID. APPARENTLY THE CTLR DID NOT MEAN TO USE THE STOPWAY, BUT ROLL TO THE END OF THE RWY AND TURN RIGHT. THE USE OF THE PHRASE 'ROLL TO THE END' HAD US THINKING TO GO TO THE END OF THE PAVEMENT IN THE STOPWAY. HAD THE CTLR SAID NOTHING, WE WOULD HAVE EXITED THE RWY IN THE NORMAL MANNER PRIOR TO THE STOPWAY. IN ADDITION, THERE IS A NOTE ON THE ARPT DIAGRAM THAT THE STOPWAY MAY ONLY BE USED WITH ATC PERMISSION, A PERMISSION WE THOUGHT WE HAD BEEN GRANTED WHEN TOLD TO 'ROLL TO THE END.' THE TWR SUPVR WAS ALSO CONCERNED BECAUSE IN 'ROLLING TO THE END' WE CROSSED THE STOPWAY FOR RWY 22L, THE RWY WE WERE TOLD TO HOLD SHORT OF. MY POINT IS, IF THE STOPWAY FOR 27 WAS NOT CONSIDERED THE RWY, IS THE STOPWAY FOR 22L CONSIDERED PART OF THAT RWY? THE LNDG ROLLOUT IS A VERY BUSY TIME IN THE FRONT END OF THE ACFT--A TIME WHEN RAPID FIRE INSTRUCTIONS ARE DIFFICULT TO ANALYZE AND ACT ON. WE DON'T HAVE THE TIME TO GO HEADS DOWN TO LOOK AT THE ARPT DIAGRAM, ONE THE CTLR HAS MEMORIZED SINCE THEY DEAL WITH ONLY 1 ARPT, AND DECODE THE INSTRUCTIONS. THIS WAS A CASE OF OVER CTL; HAD WE BEEN LEFT ALONE WE WOULD HAVE TURNED OFF THE RWY AT THE SPOT THE CTLR WANTED--AS WE HAD BEEN DOING ALL MONTH ON RWY 27.

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.