A McDonnell Douglas MD-11F aircraft, D-ALCM, sustained damage at Buenos Aires/Ezeiza-Ministro Pistarini Airport, Argentina after the losing one of the nose landing gear tyres. The aircraft operated flight LH8273 from Curitiba, Brazil and landed on runway 29 at Buenos Aires/Ezeiza at 12:42 hours local time. The Argentine accident investigation board stated the aircraft experienced an apparent loss of the left hand nose landing gear tyre, which then struck the central ventral fuselage, causing considerable damage. Conclusions of the analysis In a commercial cargo aviation flight, during the landing run, when the nose gear was resting on the runway, the complete detachment of the left wheel of the nose landing gear occurred due to the combination of the following factors: – Lack of safety mechanism separator lock. – Inadequate supervision and quality control on the Dakar stopover.