Narrative:

This was my first visit to bos. I totally reviewed the airport diagram. I was totally aware that GA was on the north cargo ramp. On final approach runway 4R, I said 'we will turn off at taxiway H or taxiway F' to my copilot. After touchdown runway 4R, I slowed the aircraft and began a turn to the left onto taxiway F. Tower said 'make a left on runway 33L and contact ground on 128.8.' my copilot repeated the clearance back to the tower. Tower said GA had moved, 'we are going to take you down the runway, sign X has moved to the north end of the airport.' tower then said 'stay on the runway, stay on the runway' with urgency. At that point I was about to clear runway 4R at runway 33L, left turn. I had become confused by the tower repeating twice that I should 'stay on the runway.' I slowly continued down the runway 4R on the left edge. I said to my copilot 'this is wrong.' at that point, an airliner went over the top of us on a go around. My copilot contacted ATC. They told us to clear at taxiway Y, which I did. This could have been avoided with a short simple clearance.

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Original NASA ASRS Text

Title: C550 CPR FLC BECAME CONFUSED AS TO THE INTERP OF TWR'S INSTRUCTIONS AFTER LNDG FOR TAXIING TO PARKING AND VACATING THE LNDG RWY RESULTING IN TWR SENDING AROUND ANOTHER ACFT.

Narrative: THIS WAS MY FIRST VISIT TO BOS. I TOTALLY REVIEWED THE ARPT DIAGRAM. I WAS TOTALLY AWARE THAT GA WAS ON THE N CARGO RAMP. ON FINAL APCH RWY 4R, I SAID 'WE WILL TURN OFF AT TXWY H OR TXWY F' TO MY COPLT. AFTER TOUCHDOWN RWY 4R, I SLOWED THE ACFT AND BEGAN A TURN TO THE L ONTO TXWY F. TWR SAID 'MAKE A L ON RWY 33L AND CONTACT GND ON 128.8.' MY COPLT REPEATED THE CLRNC BACK TO THE TWR. TWR SAID GA HAD MOVED, 'WE ARE GOING TO TAKE YOU DOWN THE RWY, SIGN X HAS MOVED TO THE N END OF THE ARPT.' TWR THEN SAID 'STAY ON THE RWY, STAY ON THE RWY' WITH URGENCY. AT THAT POINT I WAS ABOUT TO CLR RWY 4R AT RWY 33L, L TURN. I HAD BECOME CONFUSED BY THE TWR REPEATING TWICE THAT I SHOULD 'STAY ON THE RWY.' I SLOWLY CONTINUED DOWN THE RWY 4R ON THE L EDGE. I SAID TO MY COPLT 'THIS IS WRONG.' AT THAT POINT, AN AIRLINER WENT OVER THE TOP OF US ON A GAR. MY COPLT CONTACTED ATC. THEY TOLD US TO CLR AT TXWY Y, WHICH I DID. THIS COULD HAVE BEEN AVOIDED WITH A SHORT SIMPLE CLRNC.

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.