At 3:27:36, Sullenberger made a Mayday transmission to New York Terminal Radar Approach Control (TRACON):... this is Cactus 15 3 9 (siccorrect call sign was Cactus 1549).
At 3:27:36, Sullenberger radioed New York Terminal Radar Approach Control (TRACON): Mayday mayday mayday. This is Cactus 15 3 9 (siccorrect call sign was Cactus 1549).