We lease a piece of equipment (heavy machinery) under an operating lease. Under the lease we must maintain the asset. We need to replace the engine for approx 40k. Can I capitalise this repair? It will prolong the life of the equipment and will have a useful life greater then 1 year. We capitalise this sort of cost on other equipment we own, but I'm unsure of the accounting treatment of this repair to a leased asset. Apprecaite any help. thank you.