Narrative:

Air carrier X on ILS approach to runway 10R at cmh. TCASII target appeared at approximately airport location. At 700 ft differential TCASII still yellow warning. At 600 ft differential we received an RA to climb. We executed a missed approach meeting the climb rate required by the TCASII. We queried the approach control. He stated that the police helicopter frequently crosses the path. At the very least that kind of information should be on the commercial chart page for the airport. The police should be required to notify the tower controller due to the simple fact that had we not had TCASII the possibility of a midair exists.

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Original NASA ASRS Text

Title: ACR X TCASII RA WITH HELI WHILE ON FINAL APCH. EVASIVE ACTION TAKEN GAR.

Narrative: ACR X ON ILS APCH TO RWY 10R AT CMH. TCASII TARGET APPEARED AT APPROX ARPT LOCATION. AT 700 FT DIFFERENTIAL TCASII STILL YELLOW WARNING. AT 600 FT DIFFERENTIAL WE RECEIVED AN RA TO CLB. WE EXECUTED A MISSED APCH MEETING THE CLB RATE REQUIRED BY THE TCASII. WE QUERIED THE APCH CTL. HE STATED THAT THE POLICE HELI FREQUENTLY CROSSES THE PATH. AT THE VERY LEAST THAT KIND OF INFO SHOULD BE ON THE COMMERCIAL CHART PAGE FOR THE ARPT. THE POLICE SHOULD BE REQUIRED TO NOTIFY THE TWR CTLR DUE TO THE SIMPLE FACT THAT HAD WE NOT HAD TCASII THE POSSIBILITY OF A MIDAIR EXISTS.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.