SMA HAS AN NMAC WHILE TURNING FROM BASE TO FINAL APCH. THE OTHER SMA WAS ALMOST DIRECTLY OVERHEAD.

Narrative

I WAS FLYING INTO SANTA ROSA ARPT FROM THE E WITH A STUDENT. TWR TOLD US TO RPT A R BASE FOR RWY 32; RPT XING THE FREEWAY (HWY 101). WE RPTED XING HWY 101; AND WERE CLRED TO LAND ON RWY 32. BEFORE WE MADE A R TURN TO FINAL; MY STUDENT AND I LOOKED L; AND THEN TURNED FINAL. AS WE LEVELED OUT OUR WINGS ON FINAL; WE SAW A HIGH WING ACFT ABOVE US ABOUT 100-200 FT. HE DID NOT HAVE US IN SIGHT. I PUSHED OUR NOSE FORWARD; AND CONTINUED TO LOOK OUT BEHIND US. THE AIRPLANE DISAPPEARED OVER US. WE WERE NOW 1-2 MI FROM THE END OF THE RWY. I CALLED TWR AND ASKED; 'IS SMA A CLRED TO LAND?' TO CONFIRM OUR CLRNC. SHE PAUSED; THEN SAID; 'SMA A; FLASH YOUR LNDG LIGHT.' WE DID. 'SMA A IS CLR TO LAND; SMA B (THE OTHER PLANE) MAKE A R 360 DEG.' I CONFIRMED OUR CLRNC ONE MORE TIME WITH THE TWR AND PROCEEDED TO LAND WITHOUT INCIDENT. THE OTHER ACFT LANDED AFTER US AND PROCEEDED TO PARKING. CALLBACK CONVERSATION WITH REPORTER REVEALED THE FOLLOWING: RPTR WAS NOT SURE HOW THE OTHER ACFT CAME TO BE WHERE HE WAS. SHE TRIED; THE NEXT DAY; TO LISTEN TO THE TAPES BUT WAS REBUFFED. THE TWR SUPVR TOLD HER THAT THE CTLR INVOLVED HAD BEEN COUNSELED. A PREVIOUS INCIDENT WITH THE SAME CTLR ON THE SAME DAY CAUSED ANOTHER CONFLICT WITH AN INBOUND SMT ON THE W SIDE OF THE ARPT. SHE SAID THE CTLR 'WASN'T HAVING A GOOD DAY.'