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Tower controller reported that after clearing an aircraft for takeoff it did not have enough in trail distance from another aircraft departing the same runway.
| Attributes | |
| ACN | 1760972 |
| Time | |
| Date | 202009 |
| Local Time Of Day | 1801-2400 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Aircraft 1 | |
| Make Model Name | Widebody Transport |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Climb |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Climb |
| Flight Plan | IFR |
| Person 1 | |
| Function | Local |
| Qualification | Air Traffic Control Fully Certified |
| Experience | Air Traffic Control Time Certified In Pos 1 (yrs) 11.0 |
| Events | |
| Anomaly | ATC Issue All Types Deviation - Procedural Published Material / Policy |
Narrative:
First session training since marc; I had cleared aircraft X for takeoff from runway xx at heading 270 [and it] was 1 mile off the departure end when I cleared aircraft Y for take off from runway xx heading 270. When aircraft Y tagged up on the radar; he was 4SM in trail with aircraft X.allow more time between departures to ensure appropriate wake turbulence separation.
Original NASA ASRS Text
Title: Tower Controller reported that after clearing an aircraft for takeoff it did not have enough in trail distance from another aircraft departing the same runway.
Narrative: First session training since Marc; I had cleared Aircraft X for takeoff from Runway XX at heading 270 [and it] was 1 mile off the departure end when I cleared Aircraft Y for take off from Runway XX heading 270. When Aircraft Y tagged up on the radar; he was 4SM in trail with Aircraft X.Allow more time between departures to ensure appropriate wake turbulence separation.
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.