Narrative:

Flight anc-pdx. I was flying as first officer and made a normal VFR landing and roll out on runway 28R and used manual brakes to slow the aircraft to approximately 30-40 KTS. At that point the captain took over the braking and steering and made the high speed turn off, nf, and come to a complete stop prior to crossing taxiway a or entering the ramp. At this point, I switched the #1 communication radio to pdx ground 121.9 and told the captain to monitor it. As I was going to our company ramp frequency 131.05 on communication 2 for a gate assignment. At this time while stopped a white twin engine small transport xed rapidly in front of us from left to right on the ramp taxiway at a speed I would estimate of 40-50 mph, very fast. As our aircraft was heading approximately 240 and the light twin was on the parallel ramp traveling 280 degrees I did not see him until he was almost in front of us. However, the captain had him in sight at all times as he was approaching from his side (our left) and we were completely stopped. The light twin pilot however was obviously startled by the sight of our large transport braking to a stop on the high speed turn off and due to his excessive taxi speed I'm sure would have been unable to stop had we had a problem. I distinctly had the impression that the twin was trying to beat us to the ramp. An immature response to say the least. This is a busy time for us with after landing checks and the required monitoring of our ramp (for gate assignment) and ground control requiring the captain and first officer to be on different frequencys. This is a two man crew aircraft. At no time did the tower say contact ground as we cleared nor did tower or ground make any mention of the small transport traffic. When we did contact ground he merely cleared us to our gate. It was early morning and I think the same controller was working ground and tower position. Supplemental information from acn 158251. Light twin taxis by at high rate of speed, passes me while I'm on high speed exit and then starts remarks on radio that I didn't see him and almost hit. My aircraft was completely clear of taxiway and under control. I, captain, had him in sight as I turned off runway and even commented to my first officer about his excessive taxi speed.

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Original NASA ASRS Text

Title: POTENTIAL GND CONFLICT.

Narrative: FLT ANC-PDX. I WAS FLYING AS F/O AND MADE A NORMAL VFR LNDG AND ROLL OUT ON RWY 28R AND USED MANUAL BRAKES TO SLOW THE ACFT TO APPROX 30-40 KTS. AT THAT POINT THE CAPT TOOK OVER THE BRAKING AND STEERING AND MADE THE HIGH SPD TURN OFF, NF, AND COME TO A COMPLETE STOP PRIOR TO XING TXWY A OR ENTERING THE RAMP. AT THIS POINT, I SWITCHED THE #1 COM RADIO TO PDX GND 121.9 AND TOLD THE CAPT TO MONITOR IT. AS I WAS GOING TO OUR COMPANY RAMP FREQ 131.05 ON COM 2 FOR A GATE ASSIGNMENT. AT THIS TIME WHILE STOPPED A WHITE TWIN ENG SMT XED RAPIDLY IN FRONT OF US FROM L TO R ON THE RAMP TXWY AT A SPD I WOULD ESTIMATE OF 40-50 MPH, VERY FAST. AS OUR ACFT WAS HDG APPROX 240 AND THE LIGHT TWIN WAS ON THE PARALLEL RAMP TRAVELING 280 DEGS I DID NOT SEE HIM UNTIL HE WAS ALMOST IN FRONT OF US. HOWEVER, THE CAPT HAD HIM IN SIGHT AT ALL TIMES AS HE WAS APCHING FROM HIS SIDE (OUR L) AND WE WERE COMPLETELY STOPPED. THE LIGHT TWIN PLT HOWEVER WAS OBVIOUSLY STARTLED BY THE SIGHT OF OUR LGT BRAKING TO A STOP ON THE HIGH SPD TURN OFF AND DUE TO HIS EXCESSIVE TAXI SPD I'M SURE WOULD HAVE BEEN UNABLE TO STOP HAD WE HAD A PROB. I DISTINCTLY HAD THE IMPRESSION THAT THE TWIN WAS TRYING TO BEAT US TO THE RAMP. AN IMMATURE RESPONSE TO SAY THE LEAST. THIS IS A BUSY TIME FOR US WITH AFTER LNDG CHKS AND THE REQUIRED MONITORING OF OUR RAMP (FOR GATE ASSIGNMENT) AND GND CTL REQUIRING THE CAPT AND F/O TO BE ON DIFFERENT FREQS. THIS IS A TWO MAN CREW ACFT. AT NO TIME DID THE TWR SAY CONTACT GND AS WE CLRED NOR DID TWR OR GND MAKE ANY MENTION OF THE SMT TFC. WHEN WE DID CONTACT GND HE MERELY CLRED US TO OUR GATE. IT WAS EARLY MORNING AND I THINK THE SAME CTLR WAS WORKING GND AND TWR POS. SUPPLEMENTAL INFO FROM ACN 158251. LIGHT TWIN TAXIS BY AT HIGH RATE OF SPD, PASSES ME WHILE I'M ON HIGH SPD EXIT AND THEN STARTS REMARKS ON RADIO THAT I DIDN'T SEE HIM AND ALMOST HIT. MY ACFT WAS COMPLETELY CLR OF TXWY AND UNDER CTL. I, CAPT, HAD HIM IN SIGHT AS I TURNED OFF RWY AND EVEN COMMENTED TO MY F/O ABOUT HIS EXCESSIVE TAXI SPD.

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.