AIR TAXI HELI AND POLICE HELI HAVE NMAC.

Narrative

WHILE FLYING A TV NEWS TEAM IN DOWNTOWN DETROIT (I94 AND I75 INTERCHANGE); I RPTED TO AND WAS CLRED INTO DETROIT CITY AIRSPACE (DET). I WAS ADVISED BY DET TWR THAT THERE WAS NUMEROUS HELIS IN THE AREA. I STATED MY INTENTIONS ON ACFT COMMON FREQ (123.05) WHICH WAS ACKNOWLEDGED BY HELIS Y AND Z. I WAS ADVISED AT THAT TIME TO BE ON THE LOOKOUT FOR A DET POLICE HELI USING CALL SIGN ABC. I MADE NO RADIO CONTACT WITH ABC BUT OBSERVED HIM FLYING AWAY FROM THE SCENE; LOW LEVEL TO THE NE. I ENTERED A R-HAND SHALLOW TURN TO ALLOW MY CAMERAMAN TO BEGIN VIDEO TAPING THE INCIDENT ON THE GND. LCL ALTIMETER SETTING AT THAT TIME FOR DET ARPT WAS 30.10. MY INDICATED ALT WAS 1400 FT MSL AT A SPD OF 50 MPH INDICATED. DET FIELD ELEVATION; 640 FT ASL WHICH PUT ME AT APPROX 760 FT AGL. UPON LOOKING OUT MY L DOOR; I NOTICED ABC HELI TAKING EVASIVE ACTION CLBING UP AND TO THE L FROM BELOW AND BEHIND ME. AT THIS POINT; I TOOK EVASIVE ACTION AND BANKED R. ABC HELI CONTINUED CLBING UP AND TO THE L ABOVE ME AND UPON RECOVERY BANKED SHARPLY TO THE R AND BEGAN FLYING FORMATION WITH ME AT MY 9 O'CLOCK POS IN A R-HAND TURN WITHOUT RADIO CONTACT. I TRIED TO ESTABLISH RADIO CONTACT WITH ABC ON 123.05 AND ALSO DET FREQ OF 121.30. AT NO TIME DID HE ACKNOWLEDGE MY ATTEMPTS. AFTER ABC READ MY N- NUMBERS; HE RPTED TO DET ATC THAT HE WANTED TO FILE A FORMAL NMAC RPT. AT THAT TIME; I CALLED DET TWR AND ALSO RPTED A FORMAL NMAC. THE FARS DICTATE; ALONG WITH COMMON SENSE; THAT IT IS EACH AIR CREW'S RESPONSIBILITY TO SEE AND AVOID OTHER ACFT. I FEEL THAT IF WE HAD COLLIDED; I NEVER WOULD HAVE KNOWN WHAT HIT ME BECAUSE ABC HELI WAS BELOW AND BEHIND ME AND WOULD HAVE CLBED UP INTO ME IF HE HAD NOT SEEN ME AND TAKEN EVASIVE ACTION AT THE LAST MOMENT. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: RPTR STATES THAT THE TWR CTLR STARTED THE INVESTIGATION WITH A RPT TO THE LCL FSDO. EACH HELI PLT WAS INTERVIEWED BY PHONE AND THE FSDO REPRESENTATIVE INDICATED THE ONLY PROB WAS THAT 2 ACFT WERE TRYING TO OCCUPY THE SAME SPACE AT THE SAME TIME. NOBODY WAS REALLY AT FAULT. NEITHER PLT HAD VIOLATED ANY FARS.