Narrative:

Aircraft X and aircraft Y landed on opposite ends of runway 15/33 at fnl in calm wind conditions. Misset of CTAF by aircraft X pilot prevented communication between the aircraft. Visual and TCAS scans were each focused on traffic for the respective runway. Immediately on landing both aircraft saw each other. The 8500 ft fnl runway allowed the aircraft to avoid a close encounter. The aircraft Y exited at the first high-speed taxiway. The aircraft X moved to the right on runway 33 and into the grass without damage to the aircraft or the runway markers. After both aircraft were clear of the runways; the aircraft X pilot idented the CTAF error in his communication 1 (122.725 versus 122.7); announced reentering the runway and taxied to the ramp. Both pilots discussed the situation. Cause of conflict misset CTAF by aircraft X pilot and failure to double-check frequency setting against charts. Contributing factors: other local airports on similar CTAF (122.725) gave local traffic chatter to aircraft X pilot and led to the conclusion of no traffic in the fnl pattern. Calm winds on AWOS made both runways 15 and 33 appropriate. Traffic and TCAS scan by each pilot focused on traffic to and/or on the respective runways (15/33) and missed each other on final. Actions by pilots prevented the runway conflict from escalating. Immediately on landing both planes saw each other and took evasive action. The aircraft Y exited runway 15 on a high-speed taxiway. The aircraft X moved to the far right of runway 33 and then into the grass to clear the runway. Due to the 8500 ft runway length approximately 2000 ft separated the aircraft Y turnoff and the aircraft X exit to the grass.

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Original NASA ASRS Text

Title: TWO ACFT AT CTAF FNL LANDED AT OPPOSITE ENDS OF THE RWY 15/33 AND SAW ONE ANOTHER AFTER LNDG. THE PILOTS TOOK EVASIVE ACTION AVOIDING CONFLICT.

Narrative: ACFT X AND ACFT Y LANDED ON OPPOSITE ENDS OF RWY 15/33 AT FNL IN CALM WIND CONDITIONS. MISSET OF CTAF BY ACFT X PLT PREVENTED COM BTWN THE ACFT. VISUAL AND TCAS SCANS WERE EACH FOCUSED ON TFC FOR THE RESPECTIVE RWY. IMMEDIATELY ON LNDG BOTH ACFT SAW EACH OTHER. THE 8500 FT FNL RWY ALLOWED THE ACFT TO AVOID A CLOSE ENCOUNTER. THE ACFT Y EXITED AT THE FIRST HIGH-SPD TXWY. THE ACFT X MOVED TO THE R ON RWY 33 AND INTO THE GRASS WITHOUT DAMAGE TO THE ACFT OR THE RWY MARKERS. AFTER BOTH ACFT WERE CLR OF THE RWYS; THE ACFT X PLT IDENTED THE CTAF ERROR IN HIS COM 1 (122.725 VERSUS 122.7); ANNOUNCED REENTERING THE RWY AND TAXIED TO THE RAMP. BOTH PLTS DISCUSSED THE SIT. CAUSE OF CONFLICT MISSET CTAF BY ACFT X PLT AND FAILURE TO DOUBLE-CHK FREQ SETTING AGAINST CHARTS. CONTRIBUTING FACTORS: OTHER LCL ARPTS ON SIMILAR CTAF (122.725) GAVE LCL TFC CHATTER TO ACFT X PLT AND LED TO THE CONCLUSION OF NO TFC IN THE FNL PATTERN. CALM WINDS ON AWOS MADE BOTH RWYS 15 AND 33 APPROPRIATE. TFC AND TCAS SCAN BY EACH PLT FOCUSED ON TFC TO AND/OR ON THE RESPECTIVE RWYS (15/33) AND MISSED EACH OTHER ON FINAL. ACTIONS BY PLTS PREVENTED THE RWY CONFLICT FROM ESCALATING. IMMEDIATELY ON LNDG BOTH PLANES SAW EACH OTHER AND TOOK EVASIVE ACTION. THE ACFT Y EXITED RWY 15 ON A HIGH-SPD TXWY. THE ACFT X MOVED TO THE FAR R OF RWY 33 AND THEN INTO THE GRASS TO CLR THE RWY. DUE TO THE 8500 FT RWY LENGTH APPROX 2000 FT SEPARATED THE ACFT Y TURNOFF AND THE ACFT X EXIT TO THE GRASS.

Data retrieved from NASA's ASRS site as of May 2009 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.