Quite an uncontained engine failure

[CONSO]

Originally Posted by Passenger 389

Have you seen the picture showing damage to the fuselage, a little below and between two cabin windows? Looks as though it may have punctured the pressure vessel. Perhaps that is why masks deployed, and flight crew commenced an immediate descent to FL100.

(Will defer to those more knowledgeable.)

That sized hole/tear would probably be enough to trigger a mask drop- even though one engine would normally be enough to maintain a relatively slow decompression to perhaps 10K feet equivalent altitude. I'm sure the eventual report will be definitive in the actual cabin pressure rate of decompression versus altitude as the plane was descending.