Replacement Mortise Lock for patio door

Question

I have been trying to find replacement part for this sliding door. It is an American craftsman slider with blinds. When I tried to take out lock, it fell into the hollow door.

Bob · Accepted Answer

Sorry to hear about your trouble. This is a common occurrence with the 82-218 Mortise Lock, which I am fairly confident is what you need. See the video below for removal and replacement tips.