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Den local controller experienced operational error when clearing a B737 departure behind a B757 without the required separation standard.
| Attributes | |
| ACN | 859350 |
| Time | |
| Date | 200911 |
| Local Time Of Day | 0001-0600 |
| Place | |
| Locale Reference | DEN.Airport |
| State Reference | CO |
| Aircraft 1 | |
| Make Model Name | B737 Undifferentiated or Other Model |
| Flight Phase | Takeoff |
| Flight Plan | IFR |
| Person 1 | |
| Function | Local |
| Qualification | Air Traffic Control Fully Certified |
| Events | |
| Anomaly | ATC Issue All Types Deviation - Procedural Published Material / Policy |
| Miss Distance | Horizontal 21000 |
Narrative:
I departed a B737; with the previous departure being a B757. The B737 departed and was airborne. When the BRITE picked him up it was probably around 3.5 miles behind the B757. I anticipated the B757 departure to obviously be a bit further out when I issued the B737 departure a clearance. There was no systematic error on the facility or anything else. I cleared the B737 too early for departure. This was my fault. During the push I was getting the departures out and found it challenging to get them out with the required separation. I just launched the B737 too early.
Original NASA ASRS Text
Title: DEN Local Controller experienced operational error when clearing a B737 departure behind a B757 without the required separation standard.
Narrative: I departed a B737; with the previous departure being a B757. The B737 departed and was airborne. When the BRITE picked him up it was probably around 3.5 miles behind the B757. I anticipated the B757 departure to obviously be a bit further out when I issued the B737 departure a clearance. There was no systematic error on the facility or anything else. I cleared the B737 too early for departure. This was my fault. During the push I was getting the departures out and found it challenging to get them out with the required separation. I just launched the B737 too early.
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.