
Originally Posted by
ENT
Listed in the first portion of the NTSB data where the roughly 300 items were verified and checked, the FLT_D_DR was NOT plotted. and what does that mean? It means that for whatever reason the data for whether the door was OPEN or CLOSED during this flight was either not measured or the hardware was not connected.
American Airlines 77 Cockpit Door - is that your final answer? YES, IT IS., page 1
The door may or may not have been opened - the data was never recorded. Can we prove from the NTSB flight data that the door remained closed the whole flight? No, we can't.
Interesting, as the data found in the downloaded documents list the doors as closed.