History of the Flight
On 9 June 2020, an Air Tractor AT-802A, registered PK-PAG, operated by Pelita Air Service, was conducting an unscheduled fuel hauling flight. The aircraft was single-pilot operated. The day's schedule consisted of two round trips from Mozes Kilangin Airport (Timika) to Karubaga Airport (Tolikara). The first flight departed at 0555 LT (local time) under daylight conditions, cruising at FL150 (15,000 feet) with 4,000 liters of gasoline (2,700 upper, 1,300 lower). Landing at Karubaga was uneventful at 0630 LT. After unloading, the pilot departed Karubaga at 0718 LT and landed Timika at 0748 LT.
At Timika, ground personnel loaded 3,500 liters of diesel fuel (2,200 upper, 1,300 lower). The pilot then started the engine and taxied for the second flight. During taxi and runway line-up, brake checks revealed a slightly different pedal pressure: the right pedal traveled more than the left. The aircraft decelerated and stopped, and the pilot considered the brakes normal.
Departure and Approach
The second flight departed Timika at 0812 LT, climbing to 15,000 feet. The flight was uneventful until arrival at Karubaga. The aircraft overflew Karubaga at 8,000 feet, then entered a left downwind for runway 17. On downwind, the pilot pumped the brake pedals and considered the brakes normal. The pilot turned final when passing 5,300 feet, with speed 85 knots, power 1,500 ft-lb, and flaps full down.
Landing and Runway Excursion
At about 0907 LT, the aircraft touched down and bounced slightly to the right of the runway centerline. The first touchdown occurred about 30 meters from a subsequent touchdown. The pilot attempted to correct to the centerline by applying left brake. The aircraft then veered left, exited the runway, and collided with the airport fence. There was no pre- or post-impact fire.
Damage and Injuries
The aircraft sustained minor damage. The Airport Rescue and Fire Fighting (ARFF) personnel responded immediately. No injuries occurred in the occurrence.
Organizational Information
The operator, Pelita Air Service, held an Air Operator Certificate. The report notes that the investigation was ongoing at the time of publication, with no safety actions reported by involved parties.