John Ammeter wrote:
Not all hangars are that secure... I used to keep my RV-6 in a hangar
at a local airfield. Brand new hangars with a "man door" in one end of
the main slider doors. The man door lock could easily be opened by
simply reaching through the opening at the end of the main hangar door.
The fire department wouldn't let us put a keyed deadbolt on the door
unless we kept the key IN THE LOCK, accessible just as before by
reaching inside the opening...


So? Remove the key when vacating the building. I'm sure the fire
department just wanted to ensure no one would be trapped inside in the
event of a fire. Leave the key in when you are inside, remove it when
you go home.

Dan, U.S. Air Force, retired