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ZKC controller recognizes conflict and issues control instructions to retain separation. Actions not completed in a timely manner.
| Attributes | |
| ACN | 541220 |
| Time | |
| Date | 200203 |
| Day | Mon |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | navaid : stl.vortac |
| State Reference | MO |
| Altitude | msl bound lower : 35000 msl bound upper : 36000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zkc.artcc tower : zzz.tower |
| Operator | common carrier : air carrier |
| Make Model Name | Regional Jet CL65, Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other |
| Flight Phase | cruise : level |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : zkc.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | B757 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other |
| Flight Phase | descent : vacating altitude |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar |
| Experience | controller radar : 27 |
| ASRS Report | 541220 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : required legal separation non adherence : published procedure |
| Independent Detector | atc equipment : conflict alert aircraft equipment : tcas other controllera other flight crewa |
| Resolutory Action | controller : issued new clearance flight crew : took precautionary avoidance action |
| Consequence | faa : investigated |
| Miss Distance | horizontal : 20000 vertical : 1000 |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance ATC Human Performance |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
Aircraft Y on radar vector for spacing turned on course then issued successive turns heading 140 degrees then heading 180 degrees for aircraft X at FL350. Aircraft Y was descending to FL350. Aircraft Y was reclred to climb to FL370. Soon aircraft Y advised he had TCASII traffic. He then advised he was level at FL360, 1000 ft below his assigned altitude. Loss of separation occurred after aircraft Y leveled at FL360.
Original NASA ASRS Text
Title: ZKC CTLR RECOGNIZES CONFLICT AND ISSUES CTL INSTRUCTIONS TO RETAIN SEPARATION. ACTIONS NOT COMPLETED IN A TIMELY MANNER.
Narrative: ACFT Y ON RADAR VECTOR FOR SPACING TURNED ON COURSE THEN ISSUED SUCCESSIVE TURNS HDG 140 DEGS THEN HDG 180 DEGS FOR ACFT X AT FL350. ACFT Y WAS DSNDING TO FL350. ACFT Y WAS RECLRED TO CLB TO FL370. SOON ACFT Y ADVISED HE HAD TCASII TFC. HE THEN ADVISED HE WAS LEVEL AT FL360, 1000 FT BELOW HIS ASSIGNED ALT. LOSS OF SEPARATION OCCURRED AFTER ACFT Y LEVELED AT FL360.
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.