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Very low experience ZID ARTCC radar controller working with a radar associate is unable to maintain separation between 2 air carrier aircraft opposite direction at FL370.
| Attributes | |
| ACN | 548928 |
| Time | |
| Date | 200206 |
| Day | Sat |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : cvg.airport |
| State Reference | KY |
| Altitude | msl single value : 37000 |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zid.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | B737 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise : level |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : zid.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | B727 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise : level |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : radar instruction : instructor |
| Qualification | controller : radar |
| Experience | controller radar : 10 controller time certified in position1 : 1 controller time certified in position2 : 3 flight time total : 32 |
| ASRS Report | 548928 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : radar instruction : trainee |
| Qualification | controller : developmental |
| ASRS Report | 548926 |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : required legal separation other anomaly other |
| Independent Detector | atc equipment : conflict alert atc equipment other atc equipment : radar aircraft equipment : tcas other controllera other controllerb other flight crewa other flight crewb other other : 3+4 |
| Resolutory Action | controller : issued new clearance flight crew : took evasive action |
| Consequence | faa : investigated |
| Miss Distance | horizontal : 25800 vertical : 1100 |
| Supplementary | |
| Problem Areas | ATC Human Performance |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
Aircraft X northbound FL370 head-on with aircraft Y sbound at FL370. Turns and altitude were not issued in a timely manner to provide separation. Supplemental information from acn 549883: dacos d-side called btv/mad d-side with a handoff on aircraft X who was nwbound at FL370. Aircraft Y was sbound at FL370. Dacos had communications with aircraft Y. Traffic didn't look like a factor and btv/mad d-side said keep aircraft X coming. At that point, aircraft X turned northbound and the dacos radar initiated turns and altitude adjustments to provide separation.
Original NASA ASRS Text
Title: VERY LOW EXPERIENCE ZID ARTCC RADAR CTLR WORKING WITH A RADAR ASSOCIATE IS UNABLE TO MAINTAIN SEPARATION BTWN 2 ACR ACFT OPPOSITE DIRECTION AT FL370.
Narrative: ACFT X NBOUND FL370 HEAD-ON WITH ACFT Y SBOUND AT FL370. TURNS AND ALT WERE NOT ISSUED IN A TIMELY MANNER TO PROVIDE SEPARATION. SUPPLEMENTAL INFO FROM ACN 549883: DACOS D-SIDE CALLED BTV/MAD D-SIDE WITH A HDOF ON ACFT X WHO WAS NWBOUND AT FL370. ACFT Y WAS SBOUND AT FL370. DACOS HAD COMS WITH ACFT Y. TFC DIDN'T LOOK LIKE A FACTOR AND BTV/MAD D-SIDE SAID KEEP ACFT X COMING. AT THAT POINT, ACFT X TURNED NBOUND AND THE DACOS RADAR INITIATED TURNS AND ALT ADJUSTMENTS TO PROVIDE SEPARATION.
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.