Timely thread. We have a couple of these problematic door/drawer locks on Beleza (H46 #44). One appeared to be a very loose screw not holding the lock into place securely (we'll see for sure next sail). Replacing the lock did not resolve the issue on our trash door, as we went out for a daysail yesterday and it came raging out as soon as we heeled over hard. I had changed out the lock the night before fully knowing that a 60 second fix NEVER fixes a boat problem! After further inspection, the catch and the plastic that gets locked into place are not even close to being aligned correctly. I'll be filling and drilling some new holes to realign. Anyway, I think that's our problem. We have several spares of these locks from QL, and I can't tell any difference between the new ones and those that have been in operation for years on the boat.
Cheers,
Chris