[Bostaevski]

I work for an organ procurement agency and when we have to send our surgical team to a hospital for recovery we charter a jet.

So a couple days ago they are returning home and at 24000 feet they suddenly felt this explosive decompression and the cabin filled with smoke and really hot air. No masks dropped down (charters don't have masks(?)) so they had to breathe through their shirts. Meanwhile the pilots make a quick descent to 10,000 feet. What is weird is that the pilots never came over the intercoms to tell these 4 guys what was up. They land safe and sound.

A few days later we hear from the charter company their explanation:
The pilots forgot to pressurize the cabin. So at some point the backup pressurization system kicked in. This system routes air differently than the regular pressurization system and so it will blow dust into the cabin which can be mistaken for smoke. It also blows hot air.