Narrative:

I called in on unicom, 122.8 'entering traffic pattern on a right 45 degree for runway 31, right traffic, calaveras'. At 2315 ft I called on 122.8, 'calaveras traffic, entering right downwind runway 31, calaveras'. At approximately midfield an small aircraft X dove in front of us and in a steep left 75-90 degree bank passed below us as I pulled up. I had my landing light on from the time I entered the pattern on a right 45. I continued on at 2300 ft pattern altitude and landed without further incident. I tried to contact the small aircraft X twice by unicom 122.8, no answer. After the small aircraft landed I contacted the pilot.

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Original NASA ASRS Text

Title: RPTR PLT OF SMA HAD NMAC WITH ANOTHER SMA IN TFC PATTERN AT CALAVERES ARPT, CA.

Narrative: I CALLED IN ON UNICOM, 122.8 'ENTERING TFC PATTERN ON A R 45 DEG FOR RWY 31, R TFC, CALAVERAS'. AT 2315 FT I CALLED ON 122.8, 'CALAVERAS TFC, ENTERING R DOWNWIND RWY 31, CALAVERAS'. AT APPROX MIDFIELD AN SMA X DOVE IN FRONT OF US AND IN A STEEP L 75-90 DEG BANK PASSED BELOW US AS I PULLED UP. I HAD MY LNDG LIGHT ON FROM THE TIME I ENTERED THE PATTERN ON A R 45. I CONTINUED ON AT 2300 FT PATTERN ALT AND LANDED WITHOUT FURTHER INCIDENT. I TRIED TO CONTACT THE SMA X TWICE BY UNICOM 122.8, NO ANSWER. AFTER THE SMA LANDED I CONTACTED THE PLT.

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.