Originally Posted by
MichaelOLearyGenius
If indeed the flight deck door was locked
Not sure the cockpit door of the ATR42-500, 5H-PWF had anything to do with this tragic accident into Lake Victoria at HTBU.
FWIW, bulletproof/armored/secured/locked cockpit doors are not necessarily safe(r). Possibly just another mandate to reassure the traveling public.
In fact these locked doors caused a series of accidents and incidents (Germanwings 4U-9525, Mozambique Airlines TM-470, Air India Express IX-212, Air India AI-403, Air New Zealand NZ-176, etc.).