woftam,
This is absolutely NOT a reflection on any Airline, more a reflection on the safer and innocent times of past, compared to now.........
Speaking a locking cockpit doors and not losing the key, I don't think this would be done now? However for many years while the B727 was in operation, it had a lockable cockpit door, and in the forward toilet adjacent to said door, was the key to the cockpit door, hanging on a piece of cord just long enough to reach the cockpit door......
Of course in those days there was not the big concern of terrorists.
Best regards,
"lame"