Narrative:

Location: hou. We were told to taxi from gate xx via taxiway east to hold short of runway 12L. En route, we were told to cross runways 12L and 17. The hold lines between the approach ends of runways 17 and 12R are very close together, and while making the 'prepare for takeoff' PA, I taxied the aircraft slightly past the hold line for runway 12R. We stopped, informed the tower, and an aircraft on final elected to make a go around. In that situation, I should not have divided my attention to making a PA while the aircraft was moving.

Google
 

Original NASA ASRS Text

Title: AN S80 PIC, WHILE ON THE PA, CROSSES THE HOLD SHORT LINE FOR RWY 12R AT HOU, TX.

Narrative: LOCATION: HOU. WE WERE TOLD TO TAXI FROM GATE XX VIA TXWY E TO HOLD SHORT OF RWY 12L. ENRTE, WE WERE TOLD TO CROSS RWYS 12L AND 17. THE HOLD LINES BTWN THE APCH ENDS OF RWYS 17 AND 12R ARE VERY CLOSE TOGETHER, AND WHILE MAKING THE 'PREPARE FOR TKOF' PA, I TAXIED THE ACFT SLIGHTLY PAST THE HOLD LINE FOR RWY 12R. WE STOPPED, INFORMED THE TWR, AND AN ACFT ON FINAL ELECTED TO MAKE A GAR. IN THAT SIT, I SHOULD NOT HAVE DIVIDED MY ATTN TO MAKING A PA WHILE THE ACFT WAS MOVING.

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.