Narrative:

I was making touch and go's at the pinedale airport and had been in the pattern for approximately 25 min. I was in the process of completing my 5TH and final landing. I was approximately 1 1/4 mi out on a left hand downwind to runway 29 at 8200 ft and had announced to unicom and traffic on 122.8 my positions at all times. I had just throttled back and slowed down the plane and prepared it for landing. I had announced that I was turning left base for runway 29 and a full stop landing. I started a left descending turn and was approximately 20 seconds into it when a small light plane flew under my aircraft missing me by only a few ft. I made a right hand 360 degree turn and re- entered the pattern and announced my intentions and landed on runway 29. The day was clear, unrestricted visibility and with radio traffic in the area. The pinedale airport has several students and low hour pilots in training and practicing at all hours of the day. The local pilots are aware of this situation and are very conscious of the importance of announcing their positions in the area and the traffic pattern. Mr. X is aware of this and by not doing so I believe, this is a violation of reckless and careless operation of an aircraft.

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Original NASA ASRS Text

Title: NMAC BTWN 2 SMA SEL ACFT IN AN UNCTLED TFC PATTERN DURING TURN TO FINAL.

Narrative: I WAS MAKING TOUCH AND GO'S AT THE PINEDALE ARPT AND HAD BEEN IN THE PATTERN FOR APPROX 25 MIN. I WAS IN THE PROCESS OF COMPLETING MY 5TH AND FINAL LNDG. I WAS APPROX 1 1/4 MI OUT ON A L HAND DOWNWIND TO RWY 29 AT 8200 FT AND HAD ANNOUNCED TO UNICOM AND TFC ON 122.8 MY POSITIONS AT ALL TIMES. I HAD JUST THROTTLED BACK AND SLOWED DOWN THE PLANE AND PREPARED IT FOR LNDG. I HAD ANNOUNCED THAT I WAS TURNING L BASE FOR RWY 29 AND A FULL STOP LNDG. I STARTED A L DSNDING TURN AND WAS APPROX 20 SECONDS INTO IT WHEN A SMALL LIGHT PLANE FLEW UNDER MY ACFT MISSING ME BY ONLY A FEW FT. I MADE A R HAND 360 DEG TURN AND RE- ENTERED THE PATTERN AND ANNOUNCED MY INTENTIONS AND LANDED ON RWY 29. THE DAY WAS CLR, UNRESTRICTED VISIBILITY AND WITH RADIO TFC IN THE AREA. THE PINEDALE ARPT HAS SEVERAL STUDENTS AND LOW HR PLTS IN TRAINING AND PRACTICING AT ALL HRS OF THE DAY. THE LCL PLTS ARE AWARE OF THIS SIT AND ARE VERY CONSCIOUS OF THE IMPORTANCE OF ANNOUNCING THEIR POSITIONS IN THE AREA AND THE TFC PATTERN. MR. X IS AWARE OF THIS AND BY NOT DOING SO I BELIEVE, THIS IS A VIOLATION OF RECKLESS AND CARELESS OP OF AN ACFT.

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.