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ARTCC controller distraction due to WX deviations. Aircraft converging to 'hole' in WX, and does not timely anticipate required separation minima between 3 aircraft.
| Attributes | |
| ACN | 406726 |
| Time | |
| Date | 199806 |
| Day | Tue |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : bsv |
| State Reference | OH |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zob |
| Operator | common carrier : air carrier |
| Make Model Name | DC-9 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | general aviation : personal |
| Make Model Name | Conquest I/Conquest II |
| Operating Under FAR Part | Part 91 |
| Flight Phase | cruise other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar |
| Experience | controller radar : 5 |
| ASRS Report | 406726 |
| 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 |
| Resolutory Action | none taken : detected after the fact |
| Consequence | faa : investigated |
| Miss Distance | horizontal : 18000 vertical : 100 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
Excessive deviating aircraft heading for the same opening between thunderstorms. 2 aircraft on converging headings at the same altitude. Climbed one before needed separation was attained from third aircraft, 1000 ft above the aircraft that was climbed. Quit trying to fit too many aircraft through holes in WX system that are rapidly moving and changes intended rtes of flight.
Original NASA ASRS Text
Title: ARTCC CTLR DISTR DUE TO WX DEVS. ACFT CONVERGING TO 'HOLE' IN WX, AND DOES NOT TIMELY ANTICIPATE REQUIRED SEPARATION MINIMA BTWN 3 ACFT.
Narrative: EXCESSIVE DEVIATING ACFT HDG FOR THE SAME OPENING BTWN TSTMS. 2 ACFT ON CONVERGING HDGS AT THE SAME ALT. CLBED ONE BEFORE NEEDED SEPARATION WAS ATTAINED FROM THIRD ACFT, 1000 FT ABOVE THE ACFT THAT WAS CLBED. QUIT TRYING TO FIT TOO MANY ACFT THROUGH HOLES IN WX SYS THAT ARE RAPIDLY MOVING AND CHANGES INTENDED RTES OF FLT.
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.