B757-200
Air Traffic Control Developmental
Training / Qualification; Confusion
ATC Issue All Types; Deviation / Discrepancy - Procedural Published Material / Policy; Deviation / Discrepancy - Procedural Clearance; Inflight Event / Encounter Wake Vortex Encounter
Human Factors; Procedure; Aircraft
Aircraft X; was set up in a left downwind to Runway 10 level at FL100; heading 270 degrees. Aircraft Y; had just departed Runway 10 and turned north bound climbing to FL090; heading 010 degrees. Aircraft X had passed the flight path of Aircraft Y's assigned heading; traffic was called to Aircraft Y; who called Aircraft X in sight. Aircraft X had already passed through the flight path of Aircraft Y by a couple of miles; so I did not tell the pilot of Aircraft Y to maintain visual separation; as their flight paths had already crossed. I told the pilot of Aircraft Y caution wake turbulence; and climbed him to FL150. The event happened because of residual wake turbulence behind Aircraft X and because I didn't either let Aircraft Y level and wait until the aircraft crossed the wake turbulence zone; or because I didn't tell the pilot of Aircraft Y to maintain visual separation from Aircraft X; which had already crossed Aircraft Y's flight path.Perhaps a Cedar briefing item as just a reminder about residual wake turbulence trails of Heavy aircraft.
MSY Controller describes a situation where he climbed an A319 aircraft through the wake of a B757 and didn't use the residual wake turbulence rules for proper separation.