Just a note that the bolts problem on other planes is not the same as this one. This plane it seems that the locking bolts were missing entirely, not just loos

Just a note that the bolts problem on other planes is not the same as this one. This plane it seems that the locking bolts were missing entirely, not just loose. Their design requires a cotter pin and castelated nut to disappear and then for them to be completely removed, all 4, before the door can move. They act like a pin locking the door in place so all 4 have to no longer exist vs. just being loose. Of course the final report will tell but it looks like they were just not there. The other loose bolts found do however indicate a lack of attention and inspection in this area on a whole which may have contributed to this slipping through.