Iberia Flight 610 was a scheduled passenger flight that took off from Bilbao Airport bound for Madrid-Barajas Airport. Onboard were 148 passengers and crew members. As the aircraft ascended, it faced severe weather conditions, including fog and turbulence, which significantly impaired visibility. The Boeing 727, operated by Iberia, is reported to have lost altitude and crashed into Mount Oiz. Rescue operations were initiated promptly, but unfortunately, there were no survivors among those on board. The terrain and weather conditions posed considerable challenges for the rescue teams, complicating the recovery efforts.

The aftermath of the crash prompted inquiries into the safety measures and conditions that led to the accident. Investigators focused on the flight's route and the conditions faced by the crew while attempting to navigate through mountainous areas. The event raised critical discussions regarding air traffic control, the aircraft’s performance in adverse weather, and measures to ensure passenger safety during flights in regions with challenging climatic conditions. Iberia, Spain's flag carrier, faced scrutiny as the incident marked the worst crash in its operational history and became a pivotal moment in the airline's evaluations of safety protocols.

In the wake of this disaster, Iberia and aviation authorities were compelled to re-evaluate their operational strategies, particularly in relation to adverse weather conditions and mountainous areas. Changes were made to flight training and emergency preparedness, aiming to prevent similar occurrences in the future. The resulting investigation also contributed to international aviation safety regulations, emphasizing the importance of comprehensive weather assessment before allowing flights to proceed. The loss of 148 lives left a lasting impact on the victims' families, the airline, and the aviation community at large, leading to greater awareness and stricter regulations regarding flight operations.