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An iah controller departs an aircraft and then less than 2 minutes later departs another aircraft. The controller didn't have the required separation between the two aircraft due to the lack of knowledge of the re-classification of wake turbulence rules.
| Attributes | |
| ACN | 1244495 |
| Time | |
| Date | 201503 |
| Local Time Of Day | 1801-2400 |
| Place | |
| Locale Reference | IAH.Airport |
| State Reference | TX |
| Environment | |
| Light | Night |
| Aircraft 1 | |
| Make Model Name | Gulfstream V / G500 / G550 |
| Operating Under FAR Part | Part 91 |
| Flight Phase | Initial Climb |
| Route In Use | Vectors |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Medium Transport Low Wing 2 Turbojet Eng |
| Operating Under FAR Part | Part 91 |
| Flight Phase | Takeoff |
| Route In Use | Vectors |
| Flight Plan | IFR |
| Person 1 | |
| Function | Local |
| Qualification | Air Traffic Control Fully Certified |
| Experience | Air Traffic Control Time Certified In Pos 1 (yrs) 6 |
| Events | |
| Anomaly | ATC Issue All Types Conflict Airborne Conflict Deviation - Procedural Clearance Deviation - Procedural Published Material / Policy |
Narrative:
Aircraft X was cleared for takeoff from runway 15L. Less than 2 minutes later aircraft Y was cleared for takeoff from runway 15L. Under the new wake re-categorization (recat) rules I need 4 miles radar separation and I didn't have it. I also believe under the new wake recat rules I may have needed 2 minutes between the two departures. This report may be shared.I need to continue reviewing the new wake recat rules to prevent the re-occurrence of this event. I also feel a large factor to why this error happened was the lack of training we received on the new wake recat. We had no simulator time; and the instructor rushed through and skipped a lot of the informational slides.
Original NASA ASRS Text
Title: An IAH Controller departs an aircraft and then less than 2 minutes later departs another aircraft. The Controller didn't have the required separation between the two aircraft due to the lack of knowledge of the re-classification of wake turbulence rules.
Narrative: Aircraft X was cleared for takeoff from runway 15L. Less than 2 minutes later Aircraft Y was cleared for takeoff from runway 15L. Under the new wake Re-Categorization (RECAT) rules I need 4 miles radar separation and I didn't have it. I also believe under the new wake RECAT rules I may have needed 2 minutes between the two departures. This report may be shared.I need to continue reviewing the new wake RECAT rules to prevent the re-occurrence of this event. I also feel a large factor to why this error happened was the lack of training we received on the new wake RECAT. We had no simulator time; and the instructor rushed through and skipped a lot of the informational slides.
Data retrieved from NASA's ASRS site 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.