Narrative:

Upon landing on runway 27 at logan, we missed the high speed turnoffs (east and X) and were then instructed by local east to 'expedite to the end and make a right turn at the blue lights.' as we approached taxiway sierra, I realized that the captain was looking down the runway overrun to the red threshold lights as being 'the end' and the taxiway lights on B as being the 'blue lights' mentioned by local. The controller had also instructed us to 'hold short of 22R and monitor tower on 128.80, company on short final.' I had assumed, incorrectly, that the captain understood that we were expected to turn right on sierra and made the mistake of looking down at the center console to preload 128.80 in the standby communication register. As I looked up (and switched to 128.80), I realized that the captain was going to roll through sierra and into the chevron marked stopway (which was only very dimly visible as being so marked), so I called 'stop' and pointed out sierra as being our cleared route. The captain stopped the aircraft with the nosewheel just past the line of blue lights across 27 delineating the western edge of sierra. He then made a hard right turn running the nosewheel between the blue lights and back on to sierra (the mains had remained on the runway straddling the centerline) and proceeded northbound on sierra as instructed. I looked back down the runway and saw the company aircraft executing a go around but since I had already switched to local west, did not hear the exchange between the controller and the other aircraft. I believe that the markings and lighting at this intersection are a man-trap and given the instructions we received, the captain's intended course of action was logical and a very easy mistake to make. I would encourage massport to relocate the red threshold lights to the west edge of sierra. Barring some such remedial action, his error is likely to recur.

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Original NASA ASRS Text

Title: CAPT LNDG AN MLG MISSED HIGH SPD TURNOFFS FROM RWY 27 AT BOS, OVERSHOT TAXIWAY S BUT MANAGED TO TURN ACFT SHARPLY AND REGAIN TAXIWAY S. DELAY IN CLRING RWY CAUSED A GAR OF ANOTHER ACFT.

Narrative: UPON LNDG ON RWY 27 AT LOGAN, WE MISSED THE HIGH SPD TURNOFFS (E AND X) AND WERE THEN INSTRUCTED BY LCL E TO 'EXPEDITE TO THE END AND MAKE A R TURN AT THE BLUE LIGHTS.' AS WE APCHED TAXIWAY SIERRA, I REALIZED THAT THE CAPT WAS LOOKING DOWN THE RWY OVERRUN TO THE RED THRESHOLD LIGHTS AS BEING 'THE END' AND THE TAXIWAY LIGHTS ON B AS BEING THE 'BLUE LIGHTS' MENTIONED BY LCL. THE CTLR HAD ALSO INSTRUCTED US TO 'HOLD SHORT OF 22R AND MONITOR TWR ON 128.80, COMPANY ON SHORT FINAL.' I HAD ASSUMED, INCORRECTLY, THAT THE CAPT UNDERSTOOD THAT WE WERE EXPECTED TO TURN R ON SIERRA AND MADE THE MISTAKE OF LOOKING DOWN AT THE CENTER CONSOLE TO PRELOAD 128.80 IN THE STANDBY COM REGISTER. AS I LOOKED UP (AND SWITCHED TO 128.80), I REALIZED THAT THE CAPT WAS GOING TO ROLL THROUGH SIERRA AND INTO THE CHEVRON MARKED STOPWAY (WHICH WAS ONLY VERY DIMLY VISIBLE AS BEING SO MARKED), SO I CALLED 'STOP' AND POINTED OUT SIERRA AS BEING OUR CLRED RTE. THE CAPT STOPPED THE ACFT WITH THE NOSEWHEEL JUST PAST THE LINE OF BLUE LIGHTS ACROSS 27 DELINEATING THE WESTERN EDGE OF SIERRA. HE THEN MADE A HARD R TURN RUNNING THE NOSEWHEEL BTWN THE BLUE LIGHTS AND BACK ON TO SIERRA (THE MAINS HAD REMAINED ON THE RWY STRADDLING THE CENTERLINE) AND PROCEEDED NBOUND ON SIERRA AS INSTRUCTED. I LOOKED BACK DOWN THE RWY AND SAW THE COMPANY ACFT EXECUTING A GAR BUT SINCE I HAD ALREADY SWITCHED TO LCL W, DID NOT HEAR THE EXCHANGE BTWN THE CTLR AND THE OTHER ACFT. I BELIEVE THAT THE MARKINGS AND LIGHTING AT THIS INTXN ARE A MAN-TRAP AND GIVEN THE INSTRUCTIONS WE RECEIVED, THE CAPT'S INTENDED COURSE OF ACTION WAS LOGICAL AND A VERY EASY MISTAKE TO MAKE. I WOULD ENCOURAGE MASSPORT TO RELOCATE THE RED THRESHOLD LIGHTS TO THE W EDGE OF SIERRA. BARRING SOME SUCH REMEDIAL ACTION, HIS ERROR IS LIKELY TO RECUR.

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.