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Memphis tower developmental reported that failure to provide the correct wake turbulence standards resulted in a loss of separation.
| Attributes | |
| ACN | 1700883 |
| Time | |
| Date | 201911 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | MEM.TRACON |
| State Reference | TN |
| Aircraft 1 | |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Initial Climb |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Medium Transport |
| Flight Phase | Initial Climb |
| Route In Use | Vectors |
| Flight Plan | IFR |
| Person 1 | |
| Function | Local Trainee |
| Qualification | Air Traffic Control Developmental |
| Events | |
| Anomaly | ATC Issue All Types Conflict Airborne Conflict Deviation - Procedural Published Material / Policy |
Narrative:
Aircraft X departed runway 18R. RNAV departure RNAV cheto. Wake recat category D aircraft. Aircraft Y next departure runway 18L. On an ELVIS4 SID. Given a 200 heading climbing to 5;000 ft. I was the trainee; and was under impression this would not require in trail wake separation (recat F behind a D requires 4 miles). Aircraft Y acquired with roughly 3.5 miles of separation. Additionally; aircraft Y took the heading much quicker than anticipated; which didn't really make a difference. Aircraft was shipped with approximately 3.8 miles of separation; thinking that in trail spacing wasn't needed; only giving 3 miles. I will be more aware and mindful to verify any types of separation needed moving forward.
Original NASA ASRS Text
Title: Memphis Tower Developmental reported that failure to provide the correct wake turbulence standards resulted in a loss of separation.
Narrative: Aircraft X departed Runway 18R. RNAV departure RNAV CHETO. Wake RECAT category D Aircraft. Aircraft Y next departure Runway 18L. On an ELVIS4 SID. Given a 200 heading climbing to 5;000 ft. I was the trainee; and was under impression this would not require in trail wake separation (RECAT F behind a D requires 4 miles). Aircraft Y acquired with roughly 3.5 miles of separation. Additionally; Aircraft Y took the heading much quicker than anticipated; which didn't really make a difference. Aircraft was shipped with approximately 3.8 miles of separation; thinking that in trail spacing wasn't needed; only giving 3 miles. I will be more aware and mindful to verify any types of separation needed moving forward.
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.