Investigation Summary
The accident took place during a coordinated aerial display involving multiple helicopters. The formation was practicing a tactical flypast intended to coincide with a general salute by ground units. Video evidence captured the moment the Eurocopter Fennec (M502-6) deviated from its intended flight path and its main rotor blades struck the rear rotor assembly of the AgustaWestland AW139 (M503-3). The impact caused the AW139 to enter a rapid descent, crashing near the stairs of the Naval Base Stadium. The Fennec also lost control and crashed near a swimming pool within the base complex. The Royal Malaysian Navy established an investigation board which concluded that the primary cause was pilot error by the Fennec crew, who failed to maintain the required separation during the maneuver.
Final Conclusions
Malaysian investigators determined the crash was caused by pilot error on the Fennec. The investigation board concluded that the aircraft deviated from its assigned altitude and heading, leading to the collision with the AW139. All 10 occupants were killed instantly upon impact, and both airframes were destroyed.
Video Analysis
Parade training turns fatal in Malaysia helicopter collision — Two Malaysian navy helicopters collided while training for a parade on April 23, 2024 at the Lumut naval base, killing all 10 crew members.
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Airframe & Maintenance
Royal Malaysian Navy M503-3 — AgustaWestland AW139 · M503-3
Systems & Failure Modes
Tail Rotor
The AW139 tail rotor was struck by the Fennec's main rotor, leading to an immediate loss of directional control.
Visual Separation
The maneuver relied on visual separation and strict adherence to flight paths, which was compromised during the formation turn.
Interesting Facts
- 01The AW139 (M503-3) had seven occupants: four crew and three passengers.
- 02The Eurocopter Fennec (M502-6) had three crew members on board.
- 03The collision occurred during rehearsals for the Royal Malaysian Navy's 90th anniversary celebrations.
- 04Both aircraft were based at Lumut and operated by the 503 and 502 Squadrons respectively.
- 05The crash resulted in total hull loss for both helicopters.
Safety Actions & Advisories
Investigation Board Establishment
Source ↗The Royal Malaysian Navy and Ministry of Defence established a formal investigation board to review parade flight procedures and safety protocols following the collision.
Funeral and Compensation Support
Source ↗The Ministry of Defence announced it would cover all funeral costs and explore providing compensation and benefits to the families of the 10 victims.