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An air carrier MD80 flight crew responded correctly to a TCASII RA and missed an air carrier DC8 freighter that did not have TCASII by approximately 400 ft. The DC8 had been under control of ZAU and the MD80 was under control of ZMP.
| Attributes | |
| ACN | 372079 |
| Time | |
| Date | 199706 |
| Day | Thu |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | atc facility : odi |
| State Reference | MN |
| Altitude | msl bound lower : 31000 msl bound upper : 31400 |
| Environment | |
| Flight Conditions | Mixed |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | artcc : zmp |
| Operator | common carrier : air carrier |
| Make Model Name | MD-80 Super 80 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other |
| Flight Phase | cruise other |
| Route In Use | enroute airway : zmp |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | DC-8 60 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : intermediate altitude |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| ASRS Report | 372079 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument |
| ASRS Report | 372080 |
| Events | |
| Anomaly | conflict : nmac non adherence : far non adherence : published procedure non adherence : required legal separation |
| Independent Detector | atc equipment other atc equipment : unspecified aircraft equipment other aircraft equipment : unspecified other controllera |
| Resolutory Action | flight crew : took evasive action |
| Consequence | Other |
| Miss Distance | horizontal : 0 vertical : 400 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error Inter Facility Coordination Failure |
Narrative:
At FL310 while in IMC in a slight left turn for WX deviation, just leaving J36, TCASII gave an RA and climb command with traffic at 12 O'clock 800 ft below climbing into our path. First officer was flying and began a maximum effort climb while continuing the turn off airway due to the WX. We climbed 400 ft and the RA ceased as traffic moved to our rear. ZMP advised us that the traffic was being handled by ZAU and had been recently handed off. The traffic was an air carrier freighter DC8 with no TCASII and had not been advised of our presence. If we had not turned off airway or had not responded immediately, we would have more than likely collided at FL310 on airway, head-on. Somebody dropped the ball big time on this one.
Original NASA ASRS Text
Title: AN ACR MD80 FLC RESPONDED CORRECTLY TO A TCASII RA AND MISSED AN ACR DC8 FREIGHTER THAT DID NOT HAVE TCASII BY APPROX 400 FT. THE DC8 HAD BEEN UNDER CTL OF ZAU AND THE MD80 WAS UNDER CTL OF ZMP.
Narrative: AT FL310 WHILE IN IMC IN A SLIGHT L TURN FOR WX DEV, JUST LEAVING J36, TCASII GAVE AN RA AND CLB COMMAND WITH TFC AT 12 O'CLOCK 800 FT BELOW CLBING INTO OUR PATH. FO WAS FLYING AND BEGAN A MAX EFFORT CLB WHILE CONTINUING THE TURN OFF AIRWAY DUE TO THE WX. WE CLBED 400 FT AND THE RA CEASED AS TFC MOVED TO OUR REAR. ZMP ADVISED US THAT THE TFC WAS BEING HANDLED BY ZAU AND HAD BEEN RECENTLY HANDED OFF. THE TFC WAS AN ACR FREIGHTER DC8 WITH NO TCASII AND HAD NOT BEEN ADVISED OF OUR PRESENCE. IF WE HAD NOT TURNED OFF AIRWAY OR HAD NOT RESPONDED IMMEDIATELY, WE WOULD HAVE MORE THAN LIKELY COLLIDED AT FL310 ON AIRWAY, HEAD-ON. SOMEBODY DROPPED THE BALL BIG TIME ON THIS ONE.
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.