Eagle,
I have not flown in PNG as a pilot. I have flown as a Crewman (ADF/Civil) and as a passenger on civil and military a/c.
To say the ADF has had only one fatal accident compared to many civil accidents in PNG is to ignore the fact that there are far more civil aircraft, conducting far more difficult operations than the ADF would attempt, to remote locations in PNG every day, year round. They are professionals.
I think DE has a good point.
With luck, fair weather and common sense, the ADF crews will stay safe.