Narrative:

Our aircraft was tracking direct to the nottingham VOR at 14000 ft on the 330 degree radial with clearance to intercept V33, flight plan route. V33 is the 184 degree radial. Approximately 5 mi northwest of the ott VOR, washington departure issued traffic at 10 O'clock and 10 mi, level at 13000. I responded 'negative traffic' and continued searching visually and reduced TCASII setting to 10 NM. Approach issued the air carrier Y medium large transport our position and altitude. Air carrier Y responded traffic in sight. I now had the traffic on TCASII showing 8 mi and -900 ft. Approach cleared air carrier Y to maintain visual contact, climb and maintain some altitude above ours. I immediately stated to the captain we were going to be receiving an RA. We received the RA and I transmitted to approach that air carrier Y was turning right toward us. Approach queried air carrier Y who stated they had us in sight as they climbed through our altitude 1 1/2 mi north of us. At this time I noticed we had passed the VOR and had failed to turn right and intercept V33. I told this to the captain as approach reissued a clearance to intercept V33. I now realize approach control was anticipating our right turn sbound to help with the separation. Our visual searching, TCASII interpretation, and VOR passage loaded us up.

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Original NASA ASRS Text

Title: ACR MLG OPPOSITE DIRECTION MAINTAINING VISUAL SEPARATION WITH THE LGT. LGT FAILED TO TURN ON TRACK XING A VOR AS THE FLC LOOKED FOR THE TFC.

Narrative: OUR ACFT WAS TRACKING DIRECT TO THE NOTTINGHAM VOR AT 14000 FT ON THE 330 DEG RADIAL WITH CLRNC TO INTERCEPT V33, FLT PLAN RTE. V33 IS THE 184 DEG RADIAL. APPROX 5 MI NW OF THE OTT VOR, WASHINGTON DEP ISSUED TFC AT 10 O'CLOCK AND 10 MI, LEVEL AT 13000. I RESPONDED 'NEGATIVE TFC' AND CONTINUED SEARCHING VISUALLY AND REDUCED TCASII SETTING TO 10 NM. APCH ISSUED THE ACR Y MLG OUR POS AND ALT. ACR Y RESPONDED TFC IN SIGHT. I NOW HAD THE TFC ON TCASII SHOWING 8 MI AND -900 FT. APCH CLRED ACR Y TO MAINTAIN VISUAL CONTACT, CLB AND MAINTAIN SOME ALT ABOVE OURS. I IMMEDIATELY STATED TO THE CAPT WE WERE GOING TO BE RECEIVING AN RA. WE RECEIVED THE RA AND I XMITTED TO APCH THAT ACR Y WAS TURNING R TOWARD US. APCH QUERIED ACR Y WHO STATED THEY HAD US IN SIGHT AS THEY CLBED THROUGH OUR ALT 1 1/2 MI N OF US. AT THIS TIME I NOTICED WE HAD PASSED THE VOR AND HAD FAILED TO TURN R AND INTERCEPT V33. I TOLD THIS TO THE CAPT AS APCH REISSUED A CLRNC TO INTERCEPT V33. I NOW REALIZE APCH CTL WAS ANTICIPATING OUR R TURN SBOUND TO HELP WITH THE SEPARATION. OUR VISUAL SEARCHING, TCASII INTERPRETATION, AND VOR PASSAGE LOADED US UP.

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.