So now we have established that manufacturer's records may be inaccurate, please confirm
(a) what is the failure mode of the B757 cargo door?
(b) what are the consequences?
(c) if it jammed on the previous sector, how did they get any cargo out?
The point is that customers are more difficult than they were in 1974.
As a consequence, the old 'trust me, I'm a doctor' approach no longer works.
For those who don't get it, to paraphrase 411A, look forward to a nice career flipping burgers.
Those who do get it will understand the importance of effective stakeholder management.