In a nutshell, you have to remove (or partially remove) the panel on the
cabin side of the door.  There will be a couple of metal rod links
between the handle and the door latch (one for the latch, one for the
lock) that have to be unclipped from the handle (take your time - it can
be a little tricky getting fingers in the right place to
disengage/re-engage - don't get impatient so you break something).  Two
nuts hold the handle to the sheet metal (inside the door).

Bill Putney
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