Narrative:

While taxiing to runway 4R at logan international, we were told to hold short of runway 4L and contact tower. We did so and were informed of traffic on a 1 1/2 mi left base to runway 4L and were cleared to cross runway 4L and taxi to runway 4R. Before crossing runway 4L, we saw an aircraft on final that could not have been the previously reported traffic. Because of the WX and visibility, this aircraft looked as if it were on final to the runway we were cleared to cross. We held our position and questioned tower about the traffic. He informed us the traffic was on final to runway 4R, not runway 4L. Because of the distraction of the perceived traffic conflict, I forgot the originally called out traffic as I started to cross runway 4L. As we started to cross, we were told to switch to the other tower frequency. We were almost clear of runway 4L when I looked right to change frequencys, looked up and saw the original traffic, a commuter beech 1900 passing very closely behind us. There was no call from tower, or from the other aircraft, but I'm sure the passenger on the right side of the commuter got a much closer look at our aircraft's tail than I wanted them to have.

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Original NASA ASRS Text

Title: POTENTIAL GND CONFLICT AS ACR MLG CROSSES RWY. MULTIPLE RWY OP PARALLEL RWYS.

Narrative: WHILE TAXIING TO RWY 4R AT LOGAN INTL, WE WERE TOLD TO HOLD SHORT OF RWY 4L AND CONTACT TWR. WE DID SO AND WERE INFORMED OF TFC ON A 1 1/2 MI L BASE TO RWY 4L AND WERE CLRED TO CROSS RWY 4L AND TAXI TO RWY 4R. BEFORE XING RWY 4L, WE SAW AN ACFT ON FINAL THAT COULD NOT HAVE BEEN THE PREVIOUSLY RPTED TFC. BECAUSE OF THE WX AND VISIBILITY, THIS ACFT LOOKED AS IF IT WERE ON FINAL TO THE RWY WE WERE CLRED TO CROSS. WE HELD OUR POS AND QUESTIONED TWR ABOUT THE TFC. HE INFORMED US THE TFC WAS ON FINAL TO RWY 4R, NOT RWY 4L. BECAUSE OF THE DISTR OF THE PERCEIVED TFC CONFLICT, I FORGOT THE ORIGINALLY CALLED OUT TFC AS I STARTED TO CROSS RWY 4L. AS WE STARTED TO CROSS, WE WERE TOLD TO SWITCH TO THE OTHER TWR FREQ. WE WERE ALMOST CLR OF RWY 4L WHEN I LOOKED R TO CHANGE FREQS, LOOKED UP AND SAW THE ORIGINAL TFC, A COMMUTER BEECH 1900 PASSING VERY CLOSELY BEHIND US. THERE WAS NO CALL FROM TWR, OR FROM THE OTHER ACFT, BUT I'M SURE THE PAX ON THE R SIDE OF THE COMMUTER GOT A MUCH CLOSER LOOK AT OUR ACFT'S TAIL THAN I WANTED THEM TO HAVE.

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.