Erickson (formerly known as Erickson Air-Crane) is a provider of aviation services specializing in defense, security, manufacturing, maintenance, repair, and operations (MRO), and commercial services. It offers air operations, legacy fleet sustainment, aerial firefighting, powerline construction, timber harvesting, specialty construction, oil and gas industry support, etc. The company maintains and operates a fleet of rotary and fixed-wing aircraft as well as utility helicopters, including its own heavy-lift helicopter, S-64 Air Crane.