Practice – Summary judgment. The Commercial Court granted the claimant company, Aquila WSA Aviation Opportunities II Ltd, (Aquila) summary judgment on its claim against the defendant airline, Onur Air Tasimacilik AS (Onur), arising out of an agreement to lease an aircraft engine to the latter. The court held, among other things that, on the terms of the lease and an associated acceptance certificate, and on the facts, Onur was contractually estopped from relying on any alleged breach of the lease on Aquila's part, and that Onur's defences to the claim had no real prospect of success.