Narrative:

Taxiing to runway 33 at dca ground control told us to taxi up to but hold short of runway 33. Captain misunderstood. I was doing checklist items. Ground control asked if we were holding short. I said affirmative. When I looked back up, we must have crossed the hold short line. Captain then cleared the final approach course. There was no traffic. He turned airplane around and taxied back behind the hold short lines. Safety in no way was ever in doubt. There was no traffic around. Not sure how far beyond the hold short lines we crossed.

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Original NASA ASRS Text

Title: A LIGHT TURBOJET FLC AT DCA FAILS TO HOLD SHORT OF ACTIVE RWY AS INSTRUCTED BY ATC.

Narrative: TAXIING TO RWY 33 AT DCA GND CTL TOLD US TO TAXI UP TO BUT HOLD SHORT OF RWY 33. CAPT MISUNDERSTOOD. I WAS DOING CHKLIST ITEMS. GND CTL ASKED IF WE WERE HOLDING SHORT. I SAID AFFIRMATIVE. WHEN I LOOKED BACK UP, WE MUST HAVE CROSSED THE HOLD SHORT LINE. CAPT THEN CLRED THE FINAL APCH COURSE. THERE WAS NO TFC. HE TURNED AIRPLANE AROUND AND TAXIED BACK BEHIND THE HOLD SHORT LINES. SAFETY IN NO WAY WAS EVER IN DOUBT. THERE WAS NO TFC AROUND. NOT SURE HOW FAR BEYOND THE HOLD SHORT LINES WE CROSSED.

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.