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Tvc controller described conflict on final when IFR air carrier being worked by ZMP overtook VFR helicopter on practice approach.
| Attributes | |
| ACN | 732621 |
| Time | |
| Date | 200703 |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : tvc.airport |
| State Reference | MI |
| Altitude | msl single value : 2700 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zmp.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | DC-9 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : approach |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | tower : tvc.tower |
| Operator | other |
| Make Model Name | Helicopter |
| Operating Under FAR Part | Part 91 |
| Flight Phase | descent : approach |
| Flight Plan | VFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : local |
| Qualification | controller : military controller : non radar controller : radar |
| Experience | controller limited radar : 5 controller military : 6 controller non radar : 10 controller radar : 15 flight time total : 21 |
| ASRS Report | 732621 |
| Events | |
| Anomaly | conflict : airborne less severe |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued new clearance |
| Miss Distance | horizontal : 12000 vertical : 100 |
| Supplementary | |
| Problem Areas | ATC Human Performance |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Inter Facility Coordination Failure |
Narrative:
Helicopter; in contact with tvc ATCT; is executing a practice ILS approach to runway 28 and is nearing the FAF. The DC9 is still talking to ZMP inbound from the southeast for a visual approach. When the DC9 is 10 mi from the field; it is obvious that he will conflict with the helicopter at the FAF. Both aircraft are at 2700 ft. The helicopter is doing 100 KTS; the DC9 is doing 250 KTS and overtaking from behind. I attempted to contact ZMP; but could get no one to answer the line. I told the helicopter to execute a turn to the north until the DC9 passed him. Because the ZMP turn to final was late; the DC9 overshot the final. While I was able to avoid this conflict; it would not have arisen if tvc had its own approach control.
Original NASA ASRS Text
Title: TVC CTLR DESCRIBED CONFLICT ON FINAL WHEN IFR ACR BEING WORKED BY ZMP OVERTOOK VFR HELI ON PRACTICE APCH.
Narrative: HELI; IN CONTACT WITH TVC ATCT; IS EXECUTING A PRACTICE ILS APCH TO RWY 28 AND IS NEARING THE FAF. THE DC9 IS STILL TALKING TO ZMP INBOUND FROM THE SE FOR A VISUAL APCH. WHEN THE DC9 IS 10 MI FROM THE FIELD; IT IS OBVIOUS THAT HE WILL CONFLICT WITH THE HELI AT THE FAF. BOTH ACFT ARE AT 2700 FT. THE HELI IS DOING 100 KTS; THE DC9 IS DOING 250 KTS AND OVERTAKING FROM BEHIND. I ATTEMPTED TO CONTACT ZMP; BUT COULD GET NO ONE TO ANSWER THE LINE. I TOLD THE HELI TO EXECUTE A TURN TO THE N UNTIL THE DC9 PASSED HIM. BECAUSE THE ZMP TURN TO FINAL WAS LATE; THE DC9 OVERSHOT THE FINAL. WHILE I WAS ABLE TO AVOID THIS CONFLICT; IT WOULD NOT HAVE ARISEN IF TVC HAD ITS OWN APCH CTL.
Data retrieved from NASA's ASRS site as of January 2009 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.