I can tell you what they teach us on a conversion course, FU@K ALL!!!!
Our manuals dont mention the doors at all, It talks about the pressure relief system stating the pressures you have said, but nothing about doors.
It also says nothing about a dry bay in the wings or the drain holes inboard of the engines.
What they give us is the MEL a mobile phone and the number of maintroll to phone if we see somthing we dont like.
I think the attitude is the enginers will tell you if its serviceable so you (the pilots) dont need to know about it, God bless the JAA
Thanks for the info GR.
PS asked meny people about the doors and no one knew about them (Pilots that is)