Summary: Short film about the repair of a Rolls Royce Merlin engine, damaged when a crippled Lancaster made a belly landing on return from a raid on Germany.
Description: Crashed Lancaster on airfield. Inspecting the damage to the engine. A salvage party arrives and removes the engine from the aircraft, and then transfers it to a waiting truck. On arrival at the repair factory, the engine is inspected for internal damage. Close up views of damage. Engine is rotated in order to inspect the damage from all angles. The engine is then dismantled. After dismantling, the blocks are tested for leaks in the cooling system. Before decarbonising the liners are removed. All traces of paint are removed and various parts are cleaned before inspection. The parts are laid out on a table, where every piece is inspected and a report is made on its condition. Damaged crank cases are repaired by cutting away any damaged sections and gaps are filled with a combination of tie bars and welding. Once all the parts are ready, the engine is reassembled and tested. Once the repaired engine has passed inspection, it is dispatched to a storage depot ready to be installed in a new aircraft.