Conduct airlift, airdrop and aeromedical evacuation operations. The wing provided aeromedical airlift and flew humanitarian missions as required. Examples include civilian EMS vehicles, civilian aeromedical helicopter services, and military air ambulances. Air Transport Command aeromedical evacuation planes stopped at Johnston en route to Hawaii. In mid-1970 the 903d Aeromedical Evacuation Squadron moved to the base. By 1975, the 375th gained responsibility for the worldwide aeromedical evacuation system. This included the aeromedical evacuation of sick and injured. The Fleet has three main segments&colon; international, national and aeromedical evacuation. They also provided part of the aeromedical evacuation capability available to the Army. They also provided B-52 Stratofortress, special operations, aeromedical, security forces, and civil engineering support. In 2002 Polet began serving the agricultural, aeromedical and aerial photography markets. There is no provider of aeromedical service within Malawi. The RCAF also maintains the Canadian Forces School of Survival and Aeromedical Training. In 2014, NASA released a further report detailing the aeromedical aspects of the disaster. These and related operations are called "aeromedical".