History of Flight
On September 14, 2024, at approximately 0828H local time, a De Havilland Canada DHC-6-400 twin-engine turboprop aircraft, registration RP-C6903, operated by Island Aviation Inc., was conducting a non-scheduled commercial flight. Approaching Pamalican Airport, the crew received a weather report indicating wind from 250 degrees at 16 knots gusting to 23 knots, with heavy rain widespread. The pilot-in-command (PIC) informed Pamalican Radio that they would hold on the final leg until conditions improved. After being advised that the weather had improved, the PIC decided to continue the approach to Runway 13.
The approach and touchdown were uneventful. During the landing roll, the aircraft veered to the right side of the runway, causing the right main landing gear to exit the paved surface approximately 15 meters from the edge. The aircraft re-entered the runway pavement, then veered left, again leaving the pavement. It continued rolling, re-entered toward the right, and finally exited the runway, coming to rest in bushes near the terminal ramp, about 10 meters from the right runway edge lights. The flight crew taxied the aircraft back to the runway. Airport personnel and company mechanics assisted; passengers disembarked normally on the runway.
Injuries
No injuries were sustained. The two crew members and fourteen passengers were uninjured.
Damage to Aircraft
The aircraft sustained minor damage. A visual inspection revealed dents and scratches, particularly to the lower fuselage and propeller blades.
Other Damage
The aircraft struck a single wooden security sign during the excursion.
Personnel Information
The PIC held an Airline Transport Pilot License with type ratings for DO228 and DHC-6-400, and a valid Class I medical certificate. He had 692.57 hours on the DHC-6-400 and 5,671.02 total hours. The First Officer held a Commercial Pilot License with type ratings for DO228 and DHC-6-400, and a valid Class I medical certificate. He had 161.30 hours on the DHC-6-400 and 2,727.43 total hours.
Aircraft Information
The DHC-6-400 Twin Otter, serial number 991, was manufactured by De Havilland Canada in February 2023 and operated by Island Aviation Inc. It had a maximum takeoff weight of 5,670 kg and was equipped with two turboprop engines driving three-bladed reversible-pitch propellers.
Meteorological Conditions
Visual Meteorological Conditions (VMC) prevailed at the time of the incident.
Conclusion
The investigation determined that the runway side excursion resulted from the pilot-in-command's decision to continue the landing with reduced visibility, at a higher airspeed, and in a strong crosswind.