Helicopter Bell UH-1E Iroquois Serial 6163 Register N155TL 154779 used by US Marine Corps USMC. Built 1967. Aircraft history and location Aircraft History 154779 US Marine Corps to civ as N155TL N155TL - Timberline Air Service, Oregon 1997 ex 154779 Timberline Helicopters Send Updates Use APP to upload photo @ (optional) When Now? / / Send