ACT Airlines flight operated by a Boeing 747-400 freighter registered in Turkey ended in a fatal runway excursion at Hong Kong International Airport on October 20, 2025, killing two people after the aircraft veered off runway 07L, struck a ground vehicle, and entered the water. The aircraft, originally delivered in 1993 and converted to freighter configuration around 2011, was conducting a routine overnight cargo flight from Dubai when the accident occurred approximately three hours before local sunrise. The four-member crew — captain, first officer, loadmaster, and flight engineer — departed Dubai on an eight-hour flight with two MEL items logged: a hydraulic system reservoir indication that had been signed off by maintenance and an inoperative thrust reverser on the number four engine. The captain, 35 years old with approximately 6,000 total hours and just over 400 hours on the 747-400 variant specifically, was serving as pilot monitoring; the first officer, who began his career in 2016 and had been with ACT Airlines roughly two years, was the designated pilot flying. Hong Kong preliminary investigation authorities had not yet released CVR transcripts as of the reporting date.
The combination of an inoperative thrust reverser on the outboard right engine and the approach configuration chosen by the crew — flaps 25 and autobrake 2 — demands close scrutiny from operators and examiners. Asymmetric reverse thrust on a high-gross-weight freighter creates a yawing moment toward the side of the operative reversers, and with only three of four reversers available on a 747-400, disciplined directional technique and potentially modified stopping distance calculations become essential. Autobrake setting 2 represents a moderate deceleration schedule, and while the runway at 3,800 meters would ordinarily be more than sufficient for a 747-400 landing, a combination of higher-than-expected approach speed, asymmetric deceleration forces, and any delay in manual braking override could substantially compress available stopping margin. The ATC instruction to maintain speed until vacating the runway — a common noise abatement and traffic flow procedure at Hong Kong — introduced additional operational pressure that may have influenced the crew's management of energy state during the rollout.
Crew resource management and pilot-in-command authority represent a second axis of concern embedded in this accident sequence. The captain's relatively limited time on the 747-400 variant — just over 400 hours on type — versus his broader 747 experience raises questions about variant-specific procedural fluency, particularly regarding MEL limitations and their operational implications. The investigation's noted absence of a briefed plan for control transfer after landing touchdown is significant; on high-inertia, multi-crew freighters, ambiguity about who is managing rudder inputs, reverse thrust selection, and braking during the rollout phase has historically contributed to excursions. Fatigue is identified as a plausible factor given the overnight duty period culminating in a pre-dawn landing, and investigators will likely cross-reference crew rest records against applicable Turkish and Hong Kong regulatory requirements.
This accident fits within a persistent pattern of runway excursion events that the aviation safety community has tracked as a leading category of fatal accidents in commercial and cargo operations globally. The FAA, ICAO, and Flight Safety Foundation have all issued guidance in recent years emphasizing that runway excursions disproportionately involve freighter operators, where operational culture, fleet age, and MEL discipline can diverge from mainline passenger carrier standards. For Part 91, 135, and international cargo operators flying large transport-category aircraft, the ACT Airlines accident reinforces several standing best practices: explicit pre-landing briefings that address MEL performance penalties, clear crew coordination protocols for post-touchdown control, conservative autobrake selection when reverse thrust capability is degraded, and situational awareness regarding ATC speed instructions relative to actual aircraft energy state. The full investigation, including CVR and FDR data, will likely produce specific findings that carry direct relevance to 747 operators and high-gross-weight freighter crews worldwide.