2 DISSIMILAR SMAS HAD A MIDAIR COLLISION IN THE TFC PATTERN. THERE WERE NO INJURIES AND ONLY MINOR DAMAGE.

Narrative

I BELIEVE THE CAUSE OF THE PROB WAS MISINTERP OF TFC POS. I WAS FLYING SMA 1 (SINGLE ENG) AND CLRED FOR TOUCH-AND- GO ON RWY 17R AT WILEY POST ARPT. SMA 3 WAS CLRED #2 BEHIND US. ON RWY 17L LNDG TFC; AN SMA 2 TWIN WAS ON SHORT FINAL. THE SMA 3 ASKED THE CTLR WHERE HIS TFC WAS. CTLR'S RESPONSE WAS THAT THE SINGLE ENG SMA 1 WAS ON 1/4 MI FINAL. SMA 3'S RESPONSE WAS THAT HE HAD THE TFC IN SIGHT. A SHORT TIME PERIOD FOLLOWED; WHEN OUR SMA 1 WAS STRUCK FROM THE L ON TOP OF OUR FUSELAGE AND PROCEEDED TO FLY TO THE R. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE PLT OF THE BIPLANE (SMA 3) RPTS THAT THIS SIT WAS INITIALLY CALLED AN ACCIDENT BY THE LCL FAA; THEN DOWNGRADED TO AN INCIDENT THE DAY OF THE INCIDENT. HE FURTHER RPTS THAT BOTH PLTS WERE ABSOLVED FROM ANY BLAME AND THAT THE TWR CTLR WAS GIVEN AN OPERROR. THE BIPLANE LOST ABOUT 2 FT OF ITS LOWER R WING. THE OTHER ACFT (SMA 1) HAD A DENT OVER THE PLT'S HEAD AND LOST ITS COMS ANTENNA. BOTH ACFT LANDED SAFELY WITH NO FURTHER DAMAGE OR INJURY. SUPPLEMENTAL INFO FROM ACN 240056: SHOOTING TOUCH-AND-GO LNDGS ON RWY 17R WILEY POST ARPT. NO OTHER TFC ON THIS RWY. UPON TURNING XWIND; WE WERE ADVISED BY THE CTLR THAT WE WERE #2 TO LAND. TURNING DOWNWIND WE COULD NOT LOCATE THE OTHER TFC. WE WERE ADVISED OTHER ACFT ON SHORT FINAL. WE COULD NOT LOCATE ANOTHER ACFT ON SHORT FINAL; BUT DID SEE SMA 2 ON SHORT FINAL FOR RWY 17L. WE COMMENTED ON INTERPHONE THAT SOMEONE WAS GOING TO GET CHEWED FOR LNDG ON THE WRONG RWY. WE TURNED BASE; TURNED FINAL; AND WERE ABOUT 300 FT AGL; WHEN I CAUGHT A GLINT OF SMA 2. I IMMEDIATELY STARTED A PULL UP AS THE TWR CALLED (SMA 3 GAR). MY R LOWER WING LEFT YELLOW PAINT MARKS ON THE TOP OF THE CABIN OF THE SMA 1. AT THE TIME OF THE ACCIDENT; THE TWR WAS WORKING 3 ACFT -- OUR SMA 3; AND 2 OTHER ACFT. AT THIS CTL TWR IN THE PAST 5 YRS THERE HAVE BEEN SEVERAL NEAR MISSES AND 1 MIDAIR COLLISION. IT IS DIFFICULT FOR ME TO UNDERSTAND WHY CTLRS WITH PRACTICALLY NO TFC; 3 ACFT; CANNOT DO A BETTER JOB OF ADVISING THEIR TFC. OUR FIRST INDICATION OF CLOSE PROX TO ANOTHER ACFT WAS WHEN WE CAUGHT A GLANCE OF THE OTHER ACFT AND THE TWR ADVISING US TO GAR. NEEDLESS TO SAY; WE DID NOT NEED THE TWR'S ADVISE AT THIS TIME.