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S56 controller described a loss of separation event while providing OJT; the reporter acknowledging that he/she forgot over flight traffic during a technique discussion with the developmental.
| Attributes | |
| ACN | 892699 |
| Time | |
| Date | 201006 |
| Local Time Of Day | 0001-0600 |
| Place | |
| Locale Reference | S56.TRACON |
| State Reference | UT |
| Aircraft 1 | |
| Make Model Name | Regional Jet 200 ER/LR (CRJ200) |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Descent |
| Route In Use | STAR WAATS THREE |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | M-20 R Ovation |
| Flight Phase | Cruise |
| Flight Plan | IFR |
| Person 1 | |
| Function | Approach |
| Qualification | Air Traffic Control Fully Certified |
| Events | |
| Anomaly | ATC Issue All Types Conflict Airborne Conflict Deviation - Procedural Published Material / Policy |
| Miss Distance | Vertical 800 |
Narrative:
A mooney was an overflight handed off from an adjacent sector; the aircraft was established on V257 flying south. A crj was inbound from the west and was cleared via the WAATS3 arrival to runway 34L by the developmental. I made a mental note of the potential situation as we had other more important issues to deal with abeam the airport as far as sequencing; spacing; and having to issue timely speed control and communication changes to the final controller. During the training scenarios we were discussing; I forgot about the overflight and when my scan went back towards the crj it was imminent that immediate action was necessary to avert the potential for a mid-air. A descent clearance to 140; traffic alert advisory and a 20 degree turn to the right was issued to the crj and a climb clearance to 160 was issued to the mooney. A loss of separation occurred; 2.4 nm and 800 feet altitude. Recommendation; I should have told the trainee to do what I routinely do when I need to remember crossing traffic potentials; paper stop the higher aircraft by putting a higher altitude of the crossing traffic in the hanging field of the inbound aircraft.
Original NASA ASRS Text
Title: S56 controller described a loss of separation event while providing OJT; the reporter acknowledging that he/she forgot over flight traffic during a technique discussion with the developmental.
Narrative: A Mooney was an overflight handed off from an adjacent sector; the aircraft was established on V257 flying south. A CRJ was inbound from the west and was cleared via the WAATS3 arrival to Runway 34L by the Developmental. I made a mental note of the potential situation as we had other more important issues to deal with abeam the airport as far as sequencing; spacing; and having to issue timely speed control and communication changes to the Final Controller. During the training scenarios we were discussing; I forgot about the overflight and when my scan went back towards the CRJ it was imminent that immediate action was necessary to avert the potential for a mid-air. A descent clearance to 140; traffic alert advisory and a 20 degree turn to the right was issued to the CRJ and a climb clearance to 160 was issued to the Mooney. A loss of separation occurred; 2.4 nm and 800 feet altitude. Recommendation; I should have told the trainee to do what I routinely do when I need to remember crossing traffic potentials; paper stop the higher aircraft by putting a higher altitude of the crossing traffic in the hanging field of the inbound aircraft.
Data retrieved from NASA's ASRS site as of April 2012 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.