Runway Excursion, Yayasan Pelayanan Penerbangan Tariku (Pac 750 XL Pk-Tet); Duma Airstrip (Wabe), Papua, Indonesia, KNKT.23.05.09.04

On 31 May 2023, a PAC 750 XSTOL aircraft, registered PK-TET, was being operated by Yayasan Pelayanan Penerbangan Tariku on a non-scheduled cargo flight from Mozes Kilangin Airport (WAYY), Timika, to Duma Airstrip (WABE), Dumadama. The flight was the first flight of the day.

The aircraft was loaded with 870 kg of cargo. The cargo uploading process was done while the weather was still cloudy. At 0635 LT, when the weather improved, the pilot decided to depart. At 0644 LT, the aircraft took off from Timika and cruised at an altitude of 8500 ft. There was only one pilot onboard the aircraft. The flight was uneventful until the aircraft approached Dumadama.

About 7 NM from Dumadama, the pilot was able to see the airstrip visually and started to approach the airstrip. On final approach, the pilot decided to prolong the touchdown due to a muddy surface at the beginning of runway 08.

During landing, the left main landing gear hit a boar, and then the aircraft started to veer off to the left side of the runway. The lower part of the left wing contacted the ground, hit the woodpiles and building materials near the runway, and then stopped with the nose wheel resting in the drainage ditch of the airstrip. The pilot evacuated himself from the aircraft, then performed a walk-around check and found that the wings were damaged and the left main landing gear had collapsed and detached. The boar, which was hit by the left main landing gear, was found dead.

The investigation is continuing, should any further relevant safety issues emerge during the course of the investigation, KNKT will immediately bring the issues to the attention of the relevant parties and publish as required.