Longtail aviation B747 dropped engine parts from 1 of its engines. It is thought to be engine fan blades. The engine is a Pratt & whitney pw4000 a smaller version of the b777 engines. The 747 took off from Mastricht and dropped the engine parts on the town of Meerssen and hit houses and caes and a few people were injured. The aircraft landed inLiege about 30 miles from where the engine parts showered Meerssen. The aircraft landed safely.