Narrative:

After landing runway 12L at stl, flight was cleared by ground control to 'hold short runway 12R on taxiway right.' txwys/runways/ramps were snow covered up to 3-4 inches, with lights/markings/signs obscured by snow. Visibility was 1/2 mi in snow. Aircraft were landing runway 12L, departing runway 12R. I looked down to configure a communication radio, and heard the captain say 'is that the runway?' I looked up to see that the nose of our aircraft was well on the runway (12R), perhaps as much as 30-40 ft past runway edge. I confirmed that we had gone on the runway. The captain then applied power to the engines to clear the aircraft from the runway. I called ground control and stated we had crossed runway 12R, and were clear. I received no reply from ground control and called again. They replied by clearing us to our ramp, with no further requests/instructions. The captain stated that when he attempted to stop short of runway 12R, the aircraft slid onto the runway. I could have helped avoid this situation by not looking down as we approached runway 12R. The fact that stl is our domicile airport may have led to a familiarity that bred complacency. Had we been at an unfamiliar airport, we would likely have been more alert to surface conditions, taxiway slope, and hold short lines.

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Original NASA ASRS Text

Title: MLG SLIDES ONTO AN ACTIVE RWY THEY HAD BEEN TOLD TO HOLD SHORT OF. VISIBILITY WAS REDUCED AND BY THE TIME THE CAPT REALIZED HOW CLOSE TO THE RWY HE WAS, IT WAS TOO LATE TO STOP ON THE SLIPPERY SNOW COVERED TXWY.

Narrative: AFTER LNDG RWY 12L AT STL, FLT WAS CLRED BY GND CTL TO 'HOLD SHORT RWY 12R ON TXWY R.' TXWYS/RWYS/RAMPS WERE SNOW COVERED UP TO 3-4 INCHES, WITH LIGHTS/MARKINGS/SIGNS OBSCURED BY SNOW. VISIBILITY WAS 1/2 MI IN SNOW. ACFT WERE LNDG RWY 12L, DEPARTING RWY 12R. I LOOKED DOWN TO CONFIGURE A COM RADIO, AND HEARD THE CAPT SAY 'IS THAT THE RWY?' I LOOKED UP TO SEE THAT THE NOSE OF OUR ACFT WAS WELL ON THE RWY (12R), PERHAPS AS MUCH AS 30-40 FT PAST RWY EDGE. I CONFIRMED THAT WE HAD GONE ON THE RWY. THE CAPT THEN APPLIED PWR TO THE ENGS TO CLR THE ACFT FROM THE RWY. I CALLED GND CTL AND STATED WE HAD CROSSED RWY 12R, AND WERE CLR. I RECEIVED NO REPLY FROM GND CTL AND CALLED AGAIN. THEY REPLIED BY CLRING US TO OUR RAMP, WITH NO FURTHER REQUESTS/INSTRUCTIONS. THE CAPT STATED THAT WHEN HE ATTEMPTED TO STOP SHORT OF RWY 12R, THE ACFT SLID ONTO THE RWY. I COULD HAVE HELPED AVOID THIS SIT BY NOT LOOKING DOWN AS WE APCHED RWY 12R. THE FACT THAT STL IS OUR DOMICILE ARPT MAY HAVE LED TO A FAMILIARITY THAT BRED COMPLACENCY. HAD WE BEEN AT AN UNFAMILIAR ARPT, WE WOULD LIKELY HAVE BEEN MORE ALERT TO SURFACE CONDITIONS, TXWY SLOPE, AND HOLD SHORT LINES.

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.