Narrative:

Fnl (uncontrolled) was hosting a special event on 03/sat/02. Because of that, traffic was unusually heavy. Traffic was using runway 33. Due to terrain, host flts are fast of the airport, opposite from the traffic pattern. At the conclusion of one flight, I was intending to enter the pattern from a mid field crosswind. I announced this plan from 5E, 1E and over the airport. The only response was from another aircraft executing a similar plan (behind me). At the crosswind to downwind turn, saw aircraft #2 pass below and inside of #2. After landing, pilot #2 came to my location. He made comments which I felt were threatening. He did not appear willing to discuss this. I reviewed the aim after returning home. The current aim recommends a single pattern entry, 45 degrees mid field downwind. I plan to use that entry for future flts. The fundamental problems were: too many aircraft coming from too many directions, and a lack of communication from some aircraft. The lack of communication cannot be resolved since NORDO aircraft are allowed (in this case, #2 was not NORDO). Merging aircraft prior to pattern entry will help to address the first problem. Reminding pilot to communicate would help -- they set an example for both new and existing pilots.

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Original NASA ASRS Text

Title: NMAC BTWN A C210 ENTERING AN UNCTLED TFC PATTERN AND A C152 ON XWIND DURING CLBOUT AFTER TKOF.

Narrative: FNL (UNCTLED) WAS HOSTING A SPECIAL EVENT ON 03/SAT/02. BECAUSE OF THAT, TFC WAS UNUSUALLY HVY. TFC WAS USING RWY 33. DUE TO TERRAIN, HOST FLTS ARE FAST OF THE ARPT, OPPOSITE FROM THE TFC PATTERN. AT THE CONCLUSION OF ONE FLT, I WAS INTENDING TO ENTER THE PATTERN FROM A MID FIELD XWIND. I ANNOUNCED THIS PLAN FROM 5E, 1E AND OVER THE ARPT. THE ONLY RESPONSE WAS FROM ANOTHER ACFT EXECUTING A SIMILAR PLAN (BEHIND ME). AT THE XWIND TO DOWNWIND TURN, SAW ACFT #2 PASS BELOW AND INSIDE OF #2. AFTER LNDG, PLT #2 CAME TO MY LOCATION. HE MADE COMMENTS WHICH I FELT WERE THREATENING. HE DID NOT APPEAR WILLING TO DISCUSS THIS. I REVIEWED THE AIM AFTER RETURNING HOME. THE CURRENT AIM RECOMMENDS A SINGLE PATTERN ENTRY, 45 DEGS MID FIELD DOWNWIND. I PLAN TO USE THAT ENTRY FOR FUTURE FLTS. THE FUNDAMENTAL PROBS WERE: TOO MANY ACFT COMING FROM TOO MANY DIRECTIONS, AND A LACK OF COM FROM SOME ACFT. THE LACK OF COM CANNOT BE RESOLVED SINCE NORDO ACFT ARE ALLOWED (IN THIS CASE, #2 WAS NOT NORDO). MERGING ACFT PRIOR TO PATTERN ENTRY WILL HELP TO ADDRESS THE FIRST PROB. REMINDING PLT TO COMMUNICATE WOULD HELP -- THEY SET AN EXAMPLE FOR BOTH NEW AND EXISTING PLTS.

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.