Air Serv operate aircraft on humanitarian ops for MSF, WFP, US AID etc. They have bases in Amman(Jordan), Kabul, Banda Aiche, Entebbe and Beira. The aircraft operate on Air Serv AoC's and contrary to previuos(sp) posts maintenace are of as high a standard as can be expected concidering the conditions they operate under.
They lease quite a large number of aircraft and crew from Naturelink, a South African operator, the types vary from EMB120's, most of the BE series to the C208B.
All in all not a bad operation, although the areas they operate in could not be discribed as ideal. As in all things in life its what you make of it.