Narrative:

After being cleared for a visual approach, we were following the localizer and GS to runway 16 and in contact with tower. ATC was also handling several aircraft in right traffic for runway 21. At approximately 4.5 DME, we received a TCASII TA for traffic at 12 O'clock position at our altitude. A few seconds later, we received an RA to climb. I pitched up and banked to the right. I then caught sight of the cessna at 11 O'clock position moving to my 9 O'clock position. I leveled, proceeded to land with a stabilized approach. The cessna took no evasive action. Tower was immediately notified of the RA action. I also telephoned the tower supervisor and issued an near midair collision report. It appears that eugene tower assumed that the other acfts' patterns for runway 1 would pass over the approach end of runway 16 thereby not creating a hazard. This cessna, however, had flown a wider pattern that flew through the GS 3.5 mi from the end of runway 16. Additionally, there was another aircraft behind the cessna in the pattern that could have created another hazard with the evasive action to the right. This was the last leg of a 7 leg trip on a 10 hour duty day.

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Original NASA ASRS Text

Title: A DHC8 PIC NARROWLY AVOIDS A CESSNA TYPE ACFT AS BOTH ACFT WERE IN THE TFC PATTERN FOR DIFFERENT RWYS AT EUG, OR.

Narrative: AFTER BEING CLRED FOR A VISUAL APCH, WE WERE FOLLOWING THE LOC AND GS TO RWY 16 AND IN CONTACT WITH TWR. ATC WAS ALSO HANDLING SEVERAL ACFT IN R TFC FOR RWY 21. AT APPROX 4.5 DME, WE RECEIVED A TCASII TA FOR TFC AT 12 O'CLOCK POS AT OUR ALT. A FEW SECONDS LATER, WE RECEIVED AN RA TO CLB. I PITCHED UP AND BANKED TO THE R. I THEN CAUGHT SIGHT OF THE CESSNA AT 11 O'CLOCK POS MOVING TO MY 9 O'CLOCK POS. I LEVELED, PROCEEDED TO LAND WITH A STABILIZED APCH. THE CESSNA TOOK NO EVASIVE ACTION. TWR WAS IMMEDIATELY NOTIFIED OF THE RA ACTION. I ALSO TELEPHONED THE TWR SUPVR AND ISSUED AN NMAC RPT. IT APPEARS THAT EUGENE TWR ASSUMED THAT THE OTHER ACFTS' PATTERNS FOR RWY 1 WOULD PASS OVER THE APCH END OF RWY 16 THEREBY NOT CREATING A HAZARD. THIS CESSNA, HOWEVER, HAD FLOWN A WIDER PATTERN THAT FLEW THROUGH THE GS 3.5 MI FROM THE END OF RWY 16. ADDITIONALLY, THERE WAS ANOTHER ACFT BEHIND THE CESSNA IN THE PATTERN THAT COULD HAVE CREATED ANOTHER HAZARD WITH THE EVASIVE ACTION TO THE R. THIS WAS THE LAST LEG OF A 7 LEG TRIP ON A 10 HR DUTY DAY.

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.