On June 4, 2026, a Lufthansa Boeing 787-9 Dreamliner (registration D-ABPQ, named "Herne") collapsed onto its nose while parked at Frankfurt Airport's gate A15. The aircraft, delivered only in January 2026 and with just over a hundred flights, had arrived from Austin and was preparing for flight LH450 to Los Angeles. No passengers were on board, but several crew members and ground staff sustained minor injuries. The German Federal Bureau of Aircraft Accident Investigation (BFU) released a preliminary report on July 9, attributing the incident to a missing downlock pin on the nose landing gear. The day before, a fault in the main landing gear door control system had been reported, prompting a ground test procedure. Technicians placed the aircraft on jacks and inserted downlock pins into the main landing gear legs to prevent retraction during the test. However, the pin for the nose landing gear was never inserted and was later found intact in its storage box. When the landing gear control was moved to the "up" position from the cockpit, the system functioned as designed: it commanded the nose gear to retract. Without the physical safety pin, the nose leg folded, causing the aircraft's nose to drop onto the tarmac and damaging the nose gear bay doors and fairings. The BFU emphasized that the landing gear system operated according to its design, pointing to a procedural error rather than a design flaw. For ATPL and ATC students, this case is a stark reminder of the critical role of simple mechanical safeguards in aviation maintenance. Downlock pins are basic but essential devices that physically prevent landing gear retraction during ground tests. The incident underscores the importance of strict adherence to maintenance procedures and the potential consequences of even a single omitted step. It also illustrates how human factors—such as task distribution, communication, and verification—can lead to serious safety breaches. ATC students should note that such events can cause significant operational disruptions: the aircraft blocked a gate, flights were cancelled, and emergency services were activated. Understanding the technical and procedural aspects of ground incidents helps future controllers anticipate potential hazards and coordinate responses effectively. This incident also highlights the need for robust safety management systems (SMS) and the value of incident reporting and investigation in preventing future occurrences.