Hi all,
Doesn't the pre start checklist mention 'doors' after the start or pushback clearance is obtained.
I think all doors should be closed prior to start or push, and the g/engineer needs to check that they are properly closed during the push!
It's an unusual day, to me, that we start one (or two) engines prior to closing the L1 (or L2) door!
And certainly never push with any door not closed, as well as giving the c/crew 'the word' if any door is opened after the push is started, without Captn approval.
Cheers