DHL 767 Freighter Experiences Aileron Jam Despite Compliance with Icing Mandates
A Boeing 767-300 freighter operated by DHL encountered an aileron jam while flying over Scotland, despite having undergone all required modifications and inspections related to icing issues. The incident occurred during a flight from Reykjavik’s Keflavik airport to East Midlands on October 9 of the previous year. The aircraft was cruising at 35,000 feet when an autopilot caution was issued, and the first officer noticed that the aircraft did not turn as expected. Upon disengaging the autopilot, the first officer found limited movement in the roll axis, prompting the crew to declare an emergency and descend to 20,000 feet. The crew managed to regain control by applying maximum manual force to the control wheel, which eventually restored normal roll control. Investigations revealed that the left inboard aileron was deflecting significantly less than the right, but no source of ice or fluid was identified post-flight. 
