So now going full circle was the pressurization in auto or manual. Were the proper bleeds on. Did the CVR have the 10,000 ft cabin altitude beeping, same as take off warning horn recorded. What did they talk about with their engineers about the problem and what did they say. Why did they continue climbing if the cabin altitude dropped the masks? Did they just depressurize at altitude and the oxygen bottle wasn't turned fully on? It must be in the report somewhere. It probably is somewhere in these hundreds of posts. I will not spend hours going through them again but something doesn't make sense.