Narrative:

On takeoff runway 8R, we received takeoff clearance from tower controller and it appeared an aircraft received a clearance to cross the runway from ground controller downfield. The aircraft downfield reversed course to clear the runway at about the time I noticed the incursion. The aircraft (light twin) was very aggressive in preventing the situation from developing further. Tower controller misstated our call sign when he noticed the problem, adding to confusion over who was cleared for what!

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Original NASA ASRS Text

Title: A LIGHT TWIN ENG ACFT STARTS TO CROSS AN ACTIVE RWY WITHOUT CLRNC AS AN ACR IS ROLLING. THE LIGHT TWIN REVERSED COURSE AND CLRED THE RWY.

Narrative: ON TKOF RWY 8R, WE RECEIVED TKOF CLRNC FROM TWR CTLR AND IT APPEARED AN ACFT RECEIVED A CLRNC TO CROSS THE RWY FROM GND CTLR DOWNFIELD. THE ACFT DOWNFIELD REVERSED COURSE TO CLR THE RWY AT ABOUT THE TIME I NOTICED THE INCURSION. THE ACFT (LIGHT TWIN) WAS VERY AGGRESSIVE IN PREVENTING THE SIT FROM DEVELOPING FURTHER. TWR CTLR MISSTATED OUR CALL SIGN WHEN HE NOTICED THE PROB, ADDING TO CONFUSION OVER WHO WAS CLRED FOR WHAT!

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.