On June 16, 1910, the skies over the Crau aerodrome witnessed a dramatic accident that underscores the fragility of early aviation. Aviator Kimmerling, piloting a Voisin biplane, had already completed two successful test flights, reaching altitudes above 100 meters. However, during his third flight, the rear cell of his aircraft broke apart mid-air, preventing him from completing a lap and causing a crash. The accident occurred at 11:00 AM, leaving Kimmerling with internal injuries, a skull fracture, and facial contusions. Remarkably, he survived. This event is a stark reminder of how far aviation safety has come. In 1910, aircraft design was still experimental, with materials and structures prone to failure. For ATPL and ATC students, this historical case illustrates the critical importance of structural integrity and pre-flight inspections—concepts that are now embedded in modern maintenance protocols and certification standards. The accident also highlights the role of weather in flight operations: after days of bad weather, aviators like Kimmerling, Dufour, and Cheuret seized the opportunity to fly, but the rush to resume flights may have contributed to overlooked risks. From an ATC perspective, the incident shows the need for clear communication and risk assessment during test flights. Today, air traffic controllers coordinate with pilots to ensure safe separation and emergency procedures, but in 1910, such systems were nonexistent. The crash serves as a historical case study for understanding the evolution of safety management systems (SMS) and the human factors that influence decision-making. For MyATPS students, this story is not just a historical footnote—it is a lesson in the relentless pursuit of safety. Every modern regulation, from airworthiness directives to cockpit checklists, has roots in accidents like Kimmerling's. By studying these early failures, future aviation professionals gain a deeper appreciation for the protocols that protect lives today. In conclusion, the June 16, 1910 crash of Kimmerling's Voisin biplane is a poignant example of early aviation's challenges. It reminds us that safety is a continuous journey, and that every flight—whether in 1910 or 2025—demands vigilance, preparation, and respect for the aircraft's limits.