Narrative:

Cleared to taxi to runway 9R via 'taxiway B.' this is the 'new' taxiway B that was moved east on aug/fri/05. A hold short of runway 4 was also given; it did not register which 4. We checked the new 10-8 chart depicting the new taxiway B and saw a hold short line depicted short of runway 4R. (The old; complex 'taxiway B hold point' is gone.) as it did not appear that we would be taxiing across runway 4R; I wasn't sure what this clearance meant; but I was busy finding the new taxiway B and assumed that it would be evident when we got to runway 4R. As we rounded the corner of the new taxiway B; ground control told us to monitor the tower and hold short of runway 4L. I again assumed that he meant runway 4R; as we would not be crossing runway 4L at all (the approach end of runway 4L was probably 2000 ft to the northeast; and is barely depicted on the 10-8 chart). When we switched to tower; he told us to hold short of runway 4L and then said; 'oh; you've already passed the hold short line.' I looked and sure enough; we had just passed a hold short line. This line had not registered with me as we were nowhere near a runway. We stopped with the front of the engines just past the line. The tower then proceeded to give an air carrier flight on final go around instructions; even though the WX was perfect and we were nowhere near the runway or aircraft Y's flight path. I assume that this is a runway incursion; even though we were at least 1/4 mi from the runway. Or perhaps a flight path incursion. There used to be a complex of 'taxiway B hold points' presumably to prevent flight path incursions on runway 4L; but the new 10-8 chart only shows you taxiing far away from the end of runway 4L and shows no runway 4L hold line where the line actually is. I don't recall seeing any signs associated with this hold line (though I didn't see it until after we had crossed it); but when we returned from mdsd at about XA45; there were 1/2 dozen work trucks around each end of this line; so perhaps the signs have been installed. Or maybe it's now the 'new' taxiway B hold point. Supplemental information from acn 669798: there is no hold short line on the 10-8 page for runway 4L; and the instructions from tower were confusing because from the new taxiway B; you never approach runway 4L. Essentially; you are holding short of an extended centerline for a runway you can barely see.

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Original NASA ASRS Text

Title: A B757-200 CREW RPTS MISSING A NEW 'TXWY B HOLD SHORT LINE' WHILE ON BOS TXWY B AND INCURRING RWY 4L.

Narrative: CLRED TO TAXI TO RWY 9R VIA 'TXWY B.' THIS IS THE 'NEW' TXWY B THAT WAS MOVED E ON AUG/FRI/05. A HOLD SHORT OF RWY 4 WAS ALSO GIVEN; IT DID NOT REGISTER WHICH 4. WE CHKED THE NEW 10-8 CHART DEPICTING THE NEW TXWY B AND SAW A HOLD SHORT LINE DEPICTED SHORT OF RWY 4R. (THE OLD; COMPLEX 'TXWY B HOLD POINT' IS GONE.) AS IT DID NOT APPEAR THAT WE WOULD BE TAXIING ACROSS RWY 4R; I WASN'T SURE WHAT THIS CLRNC MEANT; BUT I WAS BUSY FINDING THE NEW TXWY B AND ASSUMED THAT IT WOULD BE EVIDENT WHEN WE GOT TO RWY 4R. AS WE ROUNDED THE CORNER OF THE NEW TXWY B; GND CTL TOLD US TO MONITOR THE TWR AND HOLD SHORT OF RWY 4L. I AGAIN ASSUMED THAT HE MEANT RWY 4R; AS WE WOULD NOT BE XING RWY 4L AT ALL (THE APCH END OF RWY 4L WAS PROBABLY 2000 FT TO THE NE; AND IS BARELY DEPICTED ON THE 10-8 CHART). WHEN WE SWITCHED TO TWR; HE TOLD US TO HOLD SHORT OF RWY 4L AND THEN SAID; 'OH; YOU'VE ALREADY PASSED THE HOLD SHORT LINE.' I LOOKED AND SURE ENOUGH; WE HAD JUST PASSED A HOLD SHORT LINE. THIS LINE HAD NOT REGISTERED WITH ME AS WE WERE NOWHERE NEAR A RWY. WE STOPPED WITH THE FRONT OF THE ENGS JUST PAST THE LINE. THE TWR THEN PROCEEDED TO GIVE AN ACR FLT ON FINAL GAR INSTRUCTIONS; EVEN THOUGH THE WX WAS PERFECT AND WE WERE NOWHERE NEAR THE RWY OR ACFT Y'S FLT PATH. I ASSUME THAT THIS IS A RWY INCURSION; EVEN THOUGH WE WERE AT LEAST 1/4 MI FROM THE RWY. OR PERHAPS A FLT PATH INCURSION. THERE USED TO BE A COMPLEX OF 'TXWY B HOLD POINTS' PRESUMABLY TO PREVENT FLT PATH INCURSIONS ON RWY 4L; BUT THE NEW 10-8 CHART ONLY SHOWS YOU TAXIING FAR AWAY FROM THE END OF RWY 4L AND SHOWS NO RWY 4L HOLD LINE WHERE THE LINE ACTUALLY IS. I DON'T RECALL SEEING ANY SIGNS ASSOCIATED WITH THIS HOLD LINE (THOUGH I DIDN'T SEE IT UNTIL AFTER WE HAD CROSSED IT); BUT WHEN WE RETURNED FROM MDSD AT ABOUT XA45; THERE WERE 1/2 DOZEN WORK TRUCKS AROUND EACH END OF THIS LINE; SO PERHAPS THE SIGNS HAVE BEEN INSTALLED. OR MAYBE IT'S NOW THE 'NEW' TXWY B HOLD POINT. SUPPLEMENTAL INFO FROM ACN 669798: THERE IS NO HOLD SHORT LINE ON THE 10-8 PAGE FOR RWY 4L; AND THE INSTRUCTIONS FROM TWR WERE CONFUSING BECAUSE FROM THE NEW TXWY B; YOU NEVER APCH RWY 4L. ESSENTIALLY; YOU ARE HOLDING SHORT OF AN EXTENDED CTRLINE FOR A RWY YOU CAN BARELY SEE.

Data retrieved from NASA's ASRS site as of January 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.