LAW ENFORCEMENT HELIS PENETRATE TFR WHEN RELOCATING FOR MAINT.

Narrative

I DEPARTED 05C ENRTE TO HUF. HUF WAS A FUEL STOP FOR A FLT OF 2 HELIS; WITH A FINAL DEST OF CPS. BOTH OF THESE ACFT; OH-58 AND UH1-H; ARE OWNED AND OPERATED BY THE SHERIFF'S DEPT. THE PURPOSE OF THIS FLT WAS FOR TRANSPORTATION OF THE UH1-H TO CPS FOR MAINT. PRIOR TO DEP; I OBTAINED A RTE BRIEFING VIA DUATS ON THE INTERNET. I FOUND THAT THERE WAS AN AREA OF RESTR IN THE NEWPORT; INDIANA AREA. I WROTE DOWN COORDINATES FOR THE TFR AREA AND ENTERED THEM INTO THE ACFT GPS AND MADE A WAYPOINT LABELED AS 'NEWTN.' I MAINTAINED VISUAL AND RADIO CONTACT WITH THE LEAD ACFT AND WHEN HE TOLD ME HE WAS NEARING THE TOWN OF NEWPORT; I CHKED THE GPS AND DISCOVERED THAT THE DISTANCE FROM THE WAYPOINT WOULD PLACE IT S OF HUF. I SAW THAT THE LEAD ACFT WAS NEAR A LARGE FACTORY AND NE OF A SMALL TOWN (BELIEVED TO BE NEWPORT). WHEN I GOT TO THE AREA OF THE FACTORY; I FLEW SE BEFORE FLYING TOWARD HUF. HUMAN ERROR IN WRITING DOWN AND PROGRAMMING THE INCORRECT COORDINATES FOR THE NEWPORT; INDIANA TFR AREA WAS THE CONTRIBUTING FACTOR. AS I WAS APPROX 30 MI FROM KHUL; THE LEAD ACFT RADIOED ME AND ADVISED ME THAT HUF TWR HAD ASSIGNED ME A SQUAWK CODE AND THAT I NEEDED TO CONTACT THEM. I ENTERED THAT SQUAWK CODE AND CONTACTED HUF TWR WITH MY LOCATION AND INTENTION TO LAND. I WAS ADVISED TO CONTACT THE TWR UPON LNDG; WHICH I IMMEDIATELY DID.