R22 HELI PLT INSISTS THAT HE WAS AUTHORIZED TO CONDUCT TRANSITION ABOUT AND AROUND TFR AIRSHOW AT ZZZ.

Narrative

I WAS PLT ON A TFC WATCH HELI; PARTICIPATING IN AIRSHOW AND FIREWORKS SHOW. A TFR WAS IN EFFECT FOR THAT TIME AND THAT AREA; WHICH REQUIRED NON-PARTICIPATING ACFT TO AVOID THE AIRSPACE. SINCE I WAS PARTICIPATING; HAVING BEEN A SIGNATORY TO THE LOA BTWN THE LOUISVILLE ATCT AND AERIAL PARTICIPANTS; I WAS ALLOWED TO BE IN THE AREA. I WAS FOLLOWING THE LOA; WHICH REQUIRED RADIO CONTACT WITH THE CTLR FOR THE AIRSHOW; AS WELL AS AVOIDING THE AIRSHOW PERFORMING AIR BOX. AT NO TIME DID I ENTER THE AIRBOX; LOSE CONTACT WITH THE AIR BOSS OR VIOLATE ANY REG TO MY KNOWLEDGE. AFTER LNDG; I WAS TOLD THAT A PREVIOUS PLT HAD BEEN VIOLATED BY THE FAA FOR FLYING CLOSE TO BUT NOT IN THE AIR BOX (N OF THE BUILDINGS OF DOWNTOWN ZZZ BUT STILL S OF THE AIR BOX). SINCE THAT WAS THE RTE OF FLT I HAD USED; I AM FILING THIS FORM. THE ONLY POSSIBLE PROB THAT MIGHT HAVE OCCURRED WAS MY FLYING FURTHER N THEN WAS EXPECTED. THIS WAS MY FIRST TIME FLYING DURING AIRSHOW. WHEN TOLD OF THE EXPECTED RTE; I ALTERED MY RTE TO THE USUAL ONE S OF DOWNTOWN. I FLEW AT OR ABOVE THE RECOMMENDED ALT FOR HELIS (1000 FT MSL; 5OO FT AGL) THE ENTIRE TIME.