All Vanuatu

The three engine aircraft departed Lenakel Airstrip (Tanna Island) on a flight to Ipao, Futuna Island, Vanuatu. En route, the pilot encountered poor weather conditions and as the airplane failed to arrive at destination, SAR operations were conducted. Three days later, the burned wreckage was found in a gorge located on Mt Tokugmera (1,084 meters high) located in the center of Tanna Island. All eight occupants were killed, including the airline's Chief Pilot and Operations Manager, Paul H. Burton.

While taxiing in the harbor of Port Vila, ready for takeoff, the pilot in command was apparently forced to make an evasive maneuver due to the presence of canoe's crossing his path. Doing so, the seaplane hit coral that punctured the bottom of the fuselage, causing water to penetrate into the aircraft that sank on its nose and was partially submerged. All occupants evacuated safely while the aircraft was written off.
Photos via http://www.aussieairliners.org/

During the takeoff roll, the aircraft veered to the right, went off runway, lost its undercarriage and came to rest into trees. The aircraft was written off but there were no casualties.

The crew left Port Vila Airport on a maritime patrol flight but failed to return. SAR operations were conducted but the wreckage and the four dead bodies were found six weeks later on the slope of a mountain on Malekula Island.
Crew:
F/Lt Francis Rolston,
P/O Norman Underwood,
F/O Alexander McInnes,
LAC Peter Crees.

Overshot on landing, hit an obstacle and crashed. Three crewmen were killed while all six other occupants were injured.

The crew was engaged in a bombing exercise over the Palikulo Bay, off Luganville. The twin engine aircraft left Luganville Airport in the morning, and while performing a turn, the pilot lost control of the aircraft that overturned and dove into the sea few yards off shore. All seven occupants were killed.
Crew (9th Squadron):
F/L Gordon McLachlan,
F/L Bernard O'Fagan,
F/O Maxwell Harwood,
F/O Lionel Wood,
P/O Augustine Thurston,
Lt R. Fresb,
A. Stinson, air gunner.

Crashed on takeoff with depth charges and exploded.

While approaching Vanuatu in heavy rain falls, the twin engine aircraft went out of control and crashed into the sea off Cape Queiros. On site, no survivor was found.
Crew:
Flight Lieutenant Peter Wood,
Pilot Officer Francis Baird,
Flight Sergeant Robert Carter,
Sergeant Thomas Murray,
Flight Sergeant Brian Vesty,
Corporal Edward Ayrey,
Leading Aircraftman Raymond Goff.

The aircraft bell landed for unknown reason. No casualties.

Crashed in unknown circumstances into the sea 24 km off Luganville, killing all four crew members.
Crew:
1st Lt Robert H. Healy,
2nd Lt Augustus W. Miller,
Cpl Joseph E. O'Connell,
M/Sgt Harry D. Wlodarsky.