"melted off" sounds a bit improbable, actual photos of the shards: https://roma.corriere.it/foto-gallery/cronaca/19_agosto_10/aereo-perde-pezzi-motore-che-prec

"melted off" sounds a bit improbable, actual photos of the shards: https://roma.corriere.it/foto-gallery/cronaca/19_agosto_10/aereo-perde-pezzi-motore-che-precipitano-fiumicino-9d6e7edc-bb92-11e9-9f76-c4a17a124b8d.shtml https://roma.corriere.it/foto-gallery/cronaca/19_agosto_10/a...? they don't seem melted, rather broken/fractured.