Cockpit crew doors were classed as emergency exits
Then why are they locked so that they cannot be opened from outside? A would be rescuer knows what a door handle looks like.
JETTISON HERE ¿Qué?
In 1971 a Puma went to Greenwich hospital to show them what a Puma looked like. When the crew went for lunch a squaddie was left to look after the aircraft. He may, or he may not have, fiddled with the door jettison lever and returned it to its normal position. On the way back to Odiham the pilots door detached and it was blamed on people fiddling. To prevent a reoccurrence all doors were then henceforth locked so the crew could not enter the cockpit the normal. for the rest of the World, way.
This has two drawbacks: the first is locking an emergency exit and the second is that it make no difference whatsoever because if somebody fiddles with it and the crew don't notice then the door will come off anyway, locked or not.
In the offshore world during a three hour two stop trip both doors will be used about three times. Both get in, one does either deck, both get out. That does not include the engineers and refuellers. It would be reasonable to say that a door would be operated on average every 45minutes of the aircraft's flying life, or 75% of its total hours.
GTIGE was retired with over 41,000 hours; and its doors didn't fall off once.