A DASH 8 CREW; ON FINAL FOR RWY 5 AT MKK; WERE CUT OFF BY A C402; CAUSING THEM TO RESPOND TO A TCASII RA.

Narrative

WE HAD BEEN CLRED TO LAND FOLLOWING ANOTHER ACFT (AN AZTEC; ACFT Y). A THIRD ACFT (A TWIN CESSNA 402; ACFT Z) HAD RPTED US AND THE AZTEC IN SIGHT AND WAS CLRED TO LAND FOLLOWING US AND THE AZTEC. SHORTLY THEREAFTER THE TWR HAD TOLD HIM TO TURN L TO FOLLOW US; AND INSTEAD HE SAID HE COULD NOT AND FLEW RIGHT BTWN US AND THE AZTEC. WE TURNED TO THE R TO AVOID HIM AND WERE THEN TOLD TO FOLLOW HIM. I TOLD THE TWR WE WERE DOING A 360 DEG TURN (FOR SPACING) AND THEN REPEATED CLRED TO LAND ON RWY 5. WE COMPLETED OUR 360 DEG TURN AND LANDED WITHOUT FURTHER INCIDENT. SUPPLEMENTAL INFO FROM ACN 454437: TWR CLRS US TO LAND; #2; BEHIND AZTEC ACFT Y ON FINAL. TWR TALKS TO ACFT Z. PLT RESPONDS HE SEES US AND AZTEC. AT THIS TIME; I TURN R TO WIDEN OUT FOR SPACING BEHIND AZTEC. SPACING GOOD; SO I TURN TO FINAL. FROM R OF MY ACFT; CAPT NOTICES ACFT Z RIGHT IN FRONT OF US; CUTTING FROM R TO L IN OUR APCH PATH. TCASII SCREAMS ALERT. I MAKE HARD TURN TO R TO AVOID ACFT Z. I PROCEED R AND ACCOMPLISH A 360 DEG TURN; THEN LAND AT MKK WITHOUT ANY FURTHER INCIDENT.