National Transportation Safety Board (NTSB) investigators found that failures in the navigation system on a United Airlines flight from Lagos to Washington in January 2024 led to the autopilot disengaging on causing “altitude excursions”. On March 18, 2025, the NTSB released a preliminary report of its ongoing investigation into the incident that occurred on January 24, 2025.  

During the incident, United Airlines flight 613, operated by a Boeing 787-8, experienced “altitude excursions” during cruise flight while transitioning over Cote d’Ivoire airspace at 36,000 feet. 

The aircraft was operating a scheduled international passenger flight from Murtala Muhammed International Airport (LOS) in Lagos, Nigeria, to Washington Dulles International Airport (IAD).  

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