A CPR TWIN HAS TO PERFORM TWO 360 DEG TURN IN ORDER TO COMPLETE HIS VISUAL APCH TO PRC; AZ. ONE FOR ALT AND ONE FOR TFC.

Narrative

ON AN IFR FLT PLAN; AT 10000 FT; I WAS CLRED FOR A VISUAL APCH TO RWY 30 AT PRESCOTT-LOVE ARPT; AND TO CONTACT THE TWR. I CALLED THE TWR RPTING APPROX 10 MI NE FOR VISUAL TO RWY 30. TWR INSTRUCTED ME TO RPT A 5 MI FINAL TO RWY 30; NOT TO DSND BELOW 6500 FT. I PROCEEDED SBOUND TO ARRIVE 5 MI SE OF ARPT FOR THE FINAL AND BEGAN A DSCNT TO 6500 FT. SEEING I WAS QUITE HIGH; I ASKED TWR FOR PERMISSION TO DO A L 360 DEG TURN TO LOSE ALT. THAT WAS APPROVED BUT; 'NOT TO DSND BELOW 6500 FT.' TWR ASKED MY POS A MIN LATER AND I TOLD HIM I WAS ABOUT 6 MI BUT ON MORE OF A R BASE THAN FINAL FOR RWY 30. HE INSTRUCTED ME TO CONTINUE AND MAINTAIN 6500 FT AND RPT 5 MI FINAL. RPTING A 4 1/2 MI FINAL HE TOLD ME I WAS IN SIGHT; TO CONTINUE APCH AND CLR TO DSND AND CONTACT TWR ON A SECOND FREQ FOR LNDG. TUNING IN SECOND FREQ (BY NOW I'M PROBABLY 2 1/2 MI FINAL; TWR FREQ IS CONGESTED). AFTER A MOMENT MADE CONTACT TWR CLRED ME TO LAND SAYING 'IN SIGHT #2 BEHIND SEMINOLE CLRED TO LAND.' AT THAT TIME I COULDN'T SEE TFC AND CONTINUED. WITHIN SECONDS THE SEMINOLE; A TWIN ENG RECIPROCATING LOW WING ACFT APPEARED AHEAD OF ME SLIGHTLY TO THE L. HE WAS IN A L TURN FROM A L BASE TO FINAL SLIGHTLY ABOVE MY ALT AND DSNDING. I IMMEDIATELY BROKE HARD TO THE R AND CALLED TWR OF MY TURN. HE CLRED ME FOR A R 360 DEG AND RPT RE-ESTABLISHED ON FINAL. I BELIEVE THE OTHER ACFT AND THE LCL CTLR NEVER DID SEE THE CONFLICT UNTIL I CALLED THE TWR. AFTER THE 360 DEGS I LANDED ON RWY 30 WITHOUT INCIDENT. TWR TOLD ME TO CALL THEM WHICH I DID. HE AGREED THERE WAS A COM PROB THAT I WAS NOT CLRED TO DSND OUT OF 6500 FT; BUT YET I WAS CLRED TO LAND. RWY IS A SHORT RWY MY APCH SPD IS 120 KTS. AT 2 MI OUT I NEEDED TO DSND TO LAND. I DON'T KNOW HOW HE EXPECTED ME TO LAND WITHOUT STARTING DOWN. MORE VIGILANCE IN THE COCKPIT IS; WITHOUT SAYING; SOMETHING WE ALL NEED TO ACHIEVE. THE TWR SUPERVISOR TOLD ME THEIR ARPT WAS THE SECOND BUSIEST ARPT IN AZ AND THE FIRST BUSIEST ARPT IN THE NATION WITHOUT RADAR. I THINK HAVING 2 LCL CTLRS AT SUCH A BUSY ARPT IS NOT THE BEST IDEA. TO HAVE TO CHANGE RADIO FREQ INSIDE OF 3 MI FINAL AND THEN HAVE TO WAIT FOR A CHANGE TO CHK IN; ALL THE WHILE YOU ARE APCHING THE RWY AT 120 KTS; CERTAINLY CAN CREATE CONFLICT. IT WOULD ALSO HELP; IF THE ARPT IS KNOWN TO HAVE THE MOST TFC IN THE NATION; TO INSTALL A RADAR FACILITY. THAT WOULD AT LEAST HELP SEQUENCE ARR TFC MORE EFFICIENTLY.