Samaritan Aviation flies three Cessna 206s on the Sepik. Mark Palm, who founded the nonprofit, told Aviation Week the point was to turn a one-to-three-day river journey into an hour. Nearly 200 people from isolated villages have been flown to hospital this year. The hope is more than 350 medevac sectors before December. The flights are free. A fifth of the money comes from the Papua New Guinea government, the rest from donors in the United States and Australia. Fuel arrives from Australia in 50-gallon drums. There is no road into the town where they live. Parts come by ship or by air. Palm says a typical wait is two weeks. That is the maintenance story. It is also the timetable for a woman in labour and a clinic that has run out of antibiotics.
The hangar they bought in Wewak. Palm calls it the only one there which is certified by the Civil Aviation Safety Authority of Papua New Guinea. Tooling, a parts room, medical stores sit under one roof. In-country work, he says, changed the operation. Before that, a defect meant an aeroplane sitting while an engineer and a box tried to meet on an island with weather. Keep the wrong inventory and you still wait. An alternator, a tyre, a brake pack or a radio that the MEL will not let you fly without is not a line item. It is a closed strip. Someone then flies the spare in the next 206 that is serviceable, which is how a mechanic ends up travelling with the part.
Humidity, river landings and rough fields eat the same pieces of tyres, brakes, electrics, corrosion in places a hangar inspection in a dry climate never sees. Load limits on a short grass or gravel strip decide whether the patient and the fuel can travel together. Pilot experience decides whether the strip is used at all when the cloud is on the ridge. Selection of the 206 itself, Palm calls it big enough to work, small enough for villagers to handle on a riverbank, is an economic choice disguised as an airframe.
The same arithmetic applies in Northeast India, the outer islands of Indonesia, Nepal, Bhutan and the Philippine south where utility aircraft as infrastructure, not recreation. Adventist Aviation Services and other PNG operators live on the same fuel drums and the same two-week parts clock. A cancelled relief flight does not show as a load factor. It shows as a clinic that stays dark. The unglamorous component is the whole network.