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Controller experienced separation event when trainee failed to ensure visual separation; listing lack of training resources as contributory.
| Attributes | |
| ACN | 790991 |
| Time | |
| Date | 200806 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | msl single value : 3000 |
| Environment | |
| Flight Conditions | Mixed |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : zzz.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | Brasilia EMB-120 All Series |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : approach |
| Route In Use | approach : visual |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | tracon : zzz.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | B747-400 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : approach |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : approach |
| Qualification | controller : radar |
| Experience | controller military : 5 controller radar : 20 controller time certified in position1 : 7 |
| ASRS Report | 790991 |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : published procedure non adherence : required legal separation |
| Independent Detector | other controllera |
| Resolutory Action | flight crew : took evasive action |
| Supplementary | |
| Problem Areas | ATC Human Performance FAA |
| Primary Problem | ATC Human Performance |
Narrative:
I was instructing on the ZZZ position. My trainee's training team and I had agreed 3 weeks prior that he had a difficult time making transitions and expediting/handling aircraft safely during more demanding scenarios. We recommended remedial training in the etg lab. Due to lab constraints and staffing; this never occurred. In the scenario reported; he fumbled his way through a transition from in trail to visual conditions culminating in forgetting to require a B747 following an E120 to maintain visual separation after the B747 had reported the E120 in sight; lost him; and reported him in sight again. Once again; lack of available resources caused an unsafe situation!
Original NASA ASRS Text
Title: CTLR EXPERIENCED SEPARATION EVENT WHEN TRAINEE FAILED TO ENSURE VISUAL SEPARATION; LISTING LACK OF TRAINING RESOURCES AS CONTRIBUTORY.
Narrative: I WAS INSTRUCTING ON THE ZZZ POS. MY TRAINEE'S TRAINING TEAM AND I HAD AGREED 3 WKS PRIOR THAT HE HAD A DIFFICULT TIME MAKING TRANSITIONS AND EXPEDITING/HANDLING ACFT SAFELY DURING MORE DEMANDING SCENARIOS. WE RECOMMENDED REMEDIAL TRAINING IN THE ETG LAB. DUE TO LAB CONSTRAINTS AND STAFFING; THIS NEVER OCCURRED. IN THE SCENARIO RPTED; HE FUMBLED HIS WAY THROUGH A TRANSITION FROM IN TRAIL TO VISUAL CONDITIONS CULMINATING IN FORGETTING TO REQUIRE A B747 FOLLOWING AN E120 TO MAINTAIN VISUAL SEPARATION AFTER THE B747 HAD RPTED THE E120 IN SIGHT; LOST HIM; AND RPTED HIM IN SIGHT AGAIN. ONCE AGAIN; LACK OF AVAILABLE RESOURCES CAUSED AN UNSAFE SITUATION!
Data retrieved from NASA's ASRS site as of May 2009 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.