Narrative:

During pushback, fog rolled into philadelphia international. Visibility dropped from 2 1/2 mi down to RVR 0-600-600. We discussed our taxi route which included the fact that they (ATC) had just changed runways from runway 27L to runway 9R. We were cleared 'ramp to K3 cross runway 9L (closed) and report crossing, proceed M to south to yankee, hold short and call tower at yankee and advise tower. We complied with taxi and called crossing runway 9L, we also had our strobes and all outside lights on due to the poor taxi visibility. During taxi, a ground vehicle called a couple of times for surface reports. We updated our position as S2-ground asked our position shortly after that report and I advised' on sierra crossing uniform now.' visibility now reported as RVR 600-800-600. Ground said proceed to yankee-cross yankee and call tower crossing and advise tower of your position. Our nose had just touched S4 when we saw lights come out of the fog. The first instant we thought it was the ground vehicle we heard on the frequency, but the next instant we noticed a 767 attached to the lights toward us on the high speed exit at S4. This next effort happened at 1 time. The captain applied large forward thrust and steered to the far right of the taxiway, I called out on the frequency. 'Tell air carrier to stop,' tell air carrier to stop,' in a clear command instruction, and our so was calling 'watch it watch it.' the 767 hit his brakes and turned for his right side of S4 and stopped. We turned back to center line and advised ground. No damage or injury. Great clear on our crew. We were always aware of our position, and had our heads up during the taxi. We constantly noted our position and knew of intxns. We had no hesitation to get out of the way of the 767. All of us contributed to avoiding the 767. Our brief on the runway change, and situational awareness had us prepared for anything, and our quick response to the 767 prevented metal from bending! We were told later, the 767 was to exit at S1 after any automatic landing. ATC should advise landing traffic that opposite taxiway is hot, also have runway exit plan briefed prior to landing.

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Original NASA ASRS Text

Title: WDB TAXIING HAS GND CONFLICT WITH WDB EXITING RWY.

Narrative: DURING PUSHBACK, FOG ROLLED INTO PHILADELPHIA INTL. VISIBILITY DROPPED FROM 2 1/2 MI DOWN TO RVR 0-600-600. WE DISCUSSED OUR TAXI RTE WHICH INCLUDED THE FACT THAT THEY (ATC) HAD JUST CHANGED RWYS FROM RWY 27L TO RWY 9R. WE WERE CLRED 'RAMP TO K3 CROSS RWY 9L (CLOSED) AND RPT XING, PROCEED M TO S TO YANKEE, HOLD SHORT AND CALL TWR AT YANKEE AND ADVISE TWR. WE COMPLIED WITH TAXI AND CALLED XING RWY 9L, WE ALSO HAD OUR STROBES AND ALL OUTSIDE LIGHTS ON DUE TO THE POOR TAXI VISIBILITY. DURING TAXI, A GND VEHICLE CALLED A COUPLE OF TIMES FOR SURFACE RPTS. WE UPDATED OUR POS AS S2-GND ASKED OUR POS SHORTLY AFTER THAT RPT AND I ADVISED' ON SIERRA XING UNIFORM NOW.' VISIBILITY NOW RPTED AS RVR 600-800-600. GND SAID PROCEED TO YANKEE-CROSS YANKEE AND CALL TWR XING AND ADVISE TWR OF YOUR POS. OUR NOSE HAD JUST TOUCHED S4 WHEN WE SAW LIGHTS COME OUT OF THE FOG. THE FIRST INSTANT WE THOUGHT IT WAS THE GND VEHICLE WE HEARD ON THE FREQ, BUT THE NEXT INSTANT WE NOTICED A 767 ATTACHED TO THE LIGHTS TOWARD US ON THE HIGH SPD EXIT AT S4. THIS NEXT EFFORT HAPPENED AT 1 TIME. THE CAPT APPLIED LARGE FORWARD THRUST AND STEERED TO THE FAR R OF THE TXWY, I CALLED OUT ON THE FREQ. 'TELL ACR TO STOP,' TELL ACR TO STOP,' IN A CLR COMMAND INSTRUCTION, AND OUR SO WAS CALLING 'WATCH IT WATCH IT.' THE 767 HIT HIS BRAKES AND TURNED FOR HIS R SIDE OF S4 AND STOPPED. WE TURNED BACK TO CTR LINE AND ADVISED GND. NO DAMAGE OR INJURY. GREAT CLR ON OUR CREW. WE WERE ALWAYS AWARE OF OUR POS, AND HAD OUR HEADS UP DURING THE TAXI. WE CONSTANTLY NOTED OUR POS AND KNEW OF INTXNS. WE HAD NO HESITATION TO GET OUT OF THE WAY OF THE 767. ALL OF US CONTRIBUTED TO AVOIDING THE 767. OUR BRIEF ON THE RWY CHANGE, AND SITUATIONAL AWARENESS HAD US PREPARED FOR ANYTHING, AND OUR QUICK RESPONSE TO THE 767 PREVENTED METAL FROM BENDING! WE WERE TOLD LATER, THE 767 WAS TO EXIT AT S1 AFTER ANY AUTOMATIC LNDG. ATC SHOULD ADVISE LNDG TFC THAT OPPOSITE TXWY IS HOT, ALSO HAVE RWY EXIT PLAN BRIEFED PRIOR TO LNDG.

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.