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ARTCC radar controller attempts to separate two opposite direction acrs, but the turns were not sufficient enough or soon enough to prevent a loss of separation.
| Attributes | |
| ACN | 338981 |
| Time | |
| Date | 199606 |
| Day | Wed |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : pkb |
| State Reference | WV |
| Altitude | msl bound lower : 31000 msl bound upper : 31000 |
| Environment | |
| Flight Conditions | Mixed |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zid |
| Operator | common carrier : air carrier |
| Make Model Name | B737 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other Other |
| Flight Phase | cruise other |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | MD-80 Series (DC-9-80) Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other |
| Flight Phase | cruise other |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar |
| ASRS Report | 338981 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : published procedure non adherence : required legal separation |
| Independent Detector | atc equipment other atc equipment : unspecified other controllera |
| Resolutory Action | controller : issued new clearance other |
| Consequence | Other |
| Miss Distance | horizontal : 25800 vertical : 1000 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
Traffic was building with aircraft deviating around crw. ZOB air sector shut us off completely saying they were holding too many aircraft. An air carrier was rted by tmu into my sector and I had to hold. Another air carrier was also issued holding instructions. Air carrier Y was turned 20 degrees left for traffic. Air carrier X was turned 20 degrees right, and then to a 70 degree heading. Air carrier Y turned to a 300 degree heading then a 360 degree heading. Air carrier X descended to FL260.
Original NASA ASRS Text
Title: ARTCC RADAR CTLR ATTEMPTS TO SEPARATE TWO OPPOSITE DIRECTION ACRS, BUT THE TURNS WERE NOT SUFFICIENT ENOUGH OR SOON ENOUGH TO PREVENT A LOSS OF SEPARATION.
Narrative: TFC WAS BUILDING WITH ACFT DEVIATING AROUND CRW. ZOB AIR SECTOR SHUT US OFF COMPLETELY SAYING THEY WERE HOLDING TOO MANY ACFT. AN ACR WAS RTED BY TMU INTO MY SECTOR AND I HAD TO HOLD. ANOTHER ACR WAS ALSO ISSUED HOLDING INSTRUCTIONS. ACR Y WAS TURNED 20 DEGS L FOR TFC. ACR X WAS TURNED 20 DEGS R, AND THEN TO A 70 DEG HDG. ACR Y TURNED TO A 300 DEG HDG THEN A 360 DEG HDG. ACR X DSNDED TO FL260.
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.