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ZOB instructor does not see conflict in time to resolve when descending and turning aircraft in holding for sequencing.
| Attributes | |
| ACN | 520367 |
| Time | |
| Date | 200108 |
| Day | Mon |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : zob.artcc |
| State Reference | OH |
| Altitude | agl single value : 0 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zob.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise : holding |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : zob.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise : holding |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | instruction : instructor |
| Qualification | controller : radar |
| ASRS Report | 520367 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : radar instruction : trainee |
| Events | |
| Anomaly | non adherence : published procedure non adherence : required legal separation |
| Independent Detector | atc equipment : conflict alert |
| Resolutory Action | none taken : detected after the fact |
| Consequence | faa : investigated |
| Miss Distance | horizontal : 22200 vertical : 600 |
| Supplementary | |
| Problem Areas | Airspace Structure ATC Human Performance Environmental Factor |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
Holding aircraft for pit, aircraft were told to be turned in 10 mi in trail at 210 KTS. Trying to be efficient, we turned logical aircraft next in holding pattern in, while previous aircraft took harder turn in pattern than expected.
Original NASA ASRS Text
Title: ZOB INSTRUCTOR DOES NOT SEE CONFLICT IN TIME TO RESOLVE WHEN DSNDING AND TURNING ACFT IN HOLDING FOR SEQUENCING.
Narrative: HOLDING ACFT FOR PIT, ACFT WERE TOLD TO BE TURNED IN 10 MI IN TRAIL AT 210 KTS. TRYING TO BE EFFICIENT, WE TURNED LOGICAL ACFT NEXT IN HOLDING PATTERN IN, WHILE PREVIOUS ACFT TOOK HARDER TURN IN PATTERN THAN EXPECTED.
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.