Rotorua

The pilot, who was undertaking training toward a Grade 2 Agricultural Pilot Rating, began work at approximately 0625 hours on the day of the accident. The pilot and his instructor, who was in another topdressing aircraft, flew to a block of land to the south east of Rotorua where the pilot completed 15 sowing runs, while his instructor worked in the local vicinity in the second aircraft. The pilot and instructor completed the work on this block, had a break and then transited to the Waikite Valley, arriving at approximately 0945 hours. At 1045 hours, after refuelling his aircraft, the pilot commenced sowing a ‘special mix’ fertiliser, in an alternating pattern between the instructor and pilot, with two aircraft operating from the airstrip. The alternating pattern allowed the instructor to observe and supervise the pilot during the take off and landing phases, while allowing the operation to proceed efficiently. The pilot and instructor stopped for lunch after an hour of flying, refuelled once more and then continued with their work. The amount of fertiliser that was loaded into the pilot’s aircraft was progressively increased as the work proceeded. The initial load of product was 900 kg, gradually increasing by 50 kg increments, when the instructor was satisfied that the pilot’s performance allowed this increase. The last five loads carried prior to the accident were each 1100 kg. Nothing untoward was noticed during the sowing runs, apart from the pilot aborting one landing attempt, due to the wake turbulence from the instructor’s aircraft during take off. At the time of the accident the pilot was performing ‘clearing runs’, sowing on remaining areas of land not already covered by previous sowing runs. Immediately prior to the accident, the pilot called the instructor on the radio to enquire of his location. The instructor responded with “directly behind you on the other side of the woolshed”. A few seconds later, as the instructor approached to land at the airstrip, he observed the pilot’s aircraft flying in a westerly direction at approximately 400 ft AGL. He then saw the pilot’s aircraft make a slight turn to the left. Describing what he had seen as: “he started to climb and turn slightly to the left, then the plane was in a left hand spin”. The instructor thought at the time that the aircraft spun for one and a half rotations to the left, prior to being obscured by the ridge adjacent to the airstrip. The accident occurred in daylight, at approximately 1315 hours, at Waikite Valley, Rotorua, at an elevation of 1460 ft. Latitude S 38° 18.5', longitude E 176° 17.42'.

Crashed in unknown circumstances while performing a local spraying mission. The pilot was injured and the aircraft was written off.

At 1117LT flight 92 departed Wellington Airport on a scheduled flight to Rotorua. The flight cleared Wellington Control Zone and later reported its position at Foxton and east of Ohakea. No further messages ware received from the aircraft, and no distress calls were heard. At 1155LT the aircraft was sighted over the northeast slopes of Mount Ruapehu. A few seconds later the starboard wing, complete with engine, separated from the fuselage. As the rest of the structure plunged towards the ground an explosion occurred, and the fuselage burst into flames. The aircraft crashed on the face of the mountain, and the pilot and five passengers died instantly. The accident occurred at an altitude of 7 300 ft amsl, 1 276 yd from Te Heu Heu Peak.
Crew:
Cpt Alf Bartlett, pilot.
Passengers:
Marlene Boynton,
Nicholas Crook 2 children
Irvine Down.

Crashed in unknown circumstances while performing a crop spraying mission. The pilot, sole on board, was injured.

The aircraft was parked at Rotorua Airport and ready for its schedule flight to Hamilton Airport (Rukuhia). During engine start up, a fire erupted from the left engine and the fire spread to the dry grass. The aircraft caught fire and all five occupants were able to vacate the cabin before the aircraft would be completely destroyed by fire.