C150 NEAR MISS AT VERY LOW ALT ON SHORT FINAL AT CTAF AIRFIELD.

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IT WAS A VFR DAY. A FELLOW PLT AND MYSELF PLANNED ON GOING TO FOWLERVILLE. WE HAD TO CROSS PONTIAC; MI (PTK) ARPT ENRTE. THE CTLR TOLD US THAT FOWLERVILLE ARPT WAS VERY BUSY; ALREADY. 23 PLANES WERE IN THE LNDG PATTERN; WITH 5 MORE CIRCLING. WHILE LISTENING TO THE FOWLERVILLE FREQ; THERE WAS CONTINUOUS HETERODYNE SQUEALING; VOICES; ETC. I ENTERED A LONG FINAL BEHIND A BI-PLANE. I HEARD PLANES IN FRONT OF ME ANNOUNCING WHEN THEY WERE OVER THE PWR LINES; SO I DID THE SAME. I CALLED MY SHORT FINAL; ADDED ALL MY FLAPS AND SLOWED TO MY LNDG SPD. JUST SHORT OF GETTING INTO MY FLARE FOR LNDG; A PLANE APPEARED OFF MY R WING; VERY CLOSE; AT THE SAME ALT. THE PLANE SHOT AHEAD OF ME; AND DID A HARD L TURN; RIGHT IN FRONT OF ME. AT THIS POINT; MY ACFT ENCOUNTERED HIS SLIPSTREAM AND BECAME DIFFICULT TO CTL. I COULD NOT ADD PWR; AS THE OTHER ACFT WAS DIRECTLY IN FRONT OF ME; ABOUT 25-30 FT. FINALLY; HE DIPPED BELOW ME. I ADDED PWR AND REGAINED SOLID CTL OF THE ACFT. THE OTHER ACFT DID LAND; BUT I COULD NOT FIND HIM ONCE I LANDED.