Narrative:

Landing dulles on runway 1R, cleared runway at taxiway K3 to taxiway K to taxiway east. Received clearance to ground control then to gate control who cleared us to the gate. I noticed a B747 at gate and seemed to be sticking out further from the gate than normal, but passable. I did not notice that aircraft was on pushback, but did maneuver my aircraft to left of centerline approximately 6-8 ft. The first officer advised that it would be close, so I squeezed further away from centerline and thought we would clear. The aircraft struck the tail of B747. We stopped and got a call from a flight attendant that we had struck and there was no fuel leaking. I realized I should have gotten a guideman to come out and assist. I don't know if the B747 stopped or continued to push during our taxi past his position. Taxied our aircraft to gate on our own power.

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Original NASA ASRS Text

Title: B777 WING STRIKES TAIL OF B747 WHILE TAXIING PAST B747 BEING PUSHED BACK FROM GATE. BOTH ACFT RECEIVED MINOR DAMAGE.

Narrative: LNDG DULLES ON RWY 1R, CLRED RWY AT TXWY K3 TO TXWY K TO TXWY E. RECEIVED CLRNC TO GND CTL THEN TO GATE CTL WHO CLRED US TO THE GATE. I NOTICED A B747 AT GATE AND SEEMED TO BE STICKING OUT FURTHER FROM THE GATE THAN NORMAL, BUT PASSABLE. I DID NOT NOTICE THAT ACFT WAS ON PUSHBACK, BUT DID MANEUVER MY ACFT TO L OF CTRLINE APPROX 6-8 FT. THE FO ADVISED THAT IT WOULD BE CLOSE, SO I SQUEEZED FURTHER AWAY FROM CTRLINE AND THOUGHT WE WOULD CLR. THE ACFT STRUCK THE TAIL OF B747. WE STOPPED AND GOT A CALL FROM A FLT ATTENDANT THAT WE HAD STRUCK AND THERE WAS NO FUEL LEAKING. I REALIZED I SHOULD HAVE GOTTEN A GUIDEMAN TO COME OUT AND ASSIST. I DON'T KNOW IF THE B747 STOPPED OR CONTINUED TO PUSH DURING OUR TAXI PAST HIS POS. TAXIED OUR ACFT TO GATE ON OUR OWN PWR.

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.