Narrative:

Small aircraft X landed runway 28, turned off at the end then cleared air carrier X for takeoff runway 22. Ground control held air carrier Y on his frequency to taxi small aircraft Y past air carrier Y. I gave permission to cross runway 22 with small aircraft Y, turned to check air carrier X position to change him to departure and upon turning back to the approach end of runway 22 observed air carrier Y taxiing onto the runway (runway 22) west/O clearance. Supplemental information from acn 174644: at that point we were told to taxi into position and hold on runway 22. From our hold point short of taxiway delta to the time we set our brakes in position on runway 22, we were monitoring tower frequency.

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Original NASA ASRS Text

Title: ACR TAXIED INTO POSITION AND HOLD RWY 22 WITHOUT CLRNC.

Narrative: SMA X LANDED RWY 28, TURNED OFF AT THE END THEN CLRED ACR X FOR TKOF RWY 22. GND CTL HELD ACR Y ON HIS FREQ TO TAXI SMA Y PAST ACR Y. I GAVE PERMISSION TO CROSS RWY 22 WITH SMA Y, TURNED TO CHK ACR X POS TO CHANGE HIM TO DEP AND UPON TURNING BACK TO THE APCH END OF RWY 22 OBSERVED ACR Y TAXIING ONTO THE RWY (RWY 22) W/O CLRNC. SUPPLEMENTAL INFO FROM ACN 174644: AT THAT POINT WE WERE TOLD TO TAXI INTO POS AND HOLD ON RWY 22. FROM OUR HOLD POINT SHORT OF TXWY DELTA TO THE TIME WE SET OUR BRAKES IN POS ON RWY 22, WE WERE MONITORING TWR FREQ.

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.