Narrative:

After a 'redeye' flight to mia, we were on our second leg from mia. On the ground at FBO at mia we're cleared to taxi to runway 27L via txwys K, L1 and Q. The first officer was flying this leg from left seat and taxiing the aircraft. We had some condensation on the side windscreen due to the humidity. The first officer taxied L1 to M1 past the hold short lines for runway 12. Ground control informed us we were approaching runway 12 and to turn on taxiway Q. The first officer taxied back on taxiway Q to runway 27L. The remainder of the flight was uneventful. Fatigue, condensation on the side windscreen (reducing our visibility) and failure to stop prior to the hold short lines caused this incursion. Not stopping at the hold short lines almost caused our plane to taxi onto an active runway.

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Original NASA ASRS Text

Title: HS125 HAS RWY INCURSION AT MIA.

Narrative: AFTER A 'REDEYE' FLT TO MIA, WE WERE ON OUR SECOND LEG FROM MIA. ON THE GND AT FBO AT MIA WE'RE CLRED TO TAXI TO RWY 27L VIA TXWYS K, L1 AND Q. THE FO WAS FLYING THIS LEG FROM L SEAT AND TAXIING THE ACFT. WE HAD SOME CONDENSATION ON THE SIDE WINDSCREEN DUE TO THE HUMIDITY. THE FO TAXIED L1 TO M1 PAST THE HOLD SHORT LINES FOR RWY 12. GND CTL INFORMED US WE WERE APCHING RWY 12 AND TO TURN ON TXWY Q. THE FO TAXIED BACK ON TXWY Q TO RWY 27L. THE REMAINDER OF THE FLT WAS UNEVENTFUL. FATIGUE, CONDENSATION ON THE SIDE WINDSCREEN (REDUCING OUR VISIBILITY) AND FAILURE TO STOP PRIOR TO THE HOLD SHORT LINES CAUSED THIS INCURSION. NOT STOPPING AT THE HOLD SHORT LINES ALMOST CAUSED OUR PLANE TO TAXI ONTO AN ACTIVE RWY.

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.