Complex sentence: Only one Albacore is known to survive, on display at the Fleet Air Arm Museum, which was built using parts of Albacores N4389 and N4172 recovered from crash sites.
Split into simpler sentences: Only one Albacore is known to survive, on display at the Fleet Air Arm Museum. It was built using parts of Albacores N4389 and N4172 recovered from crash sites.