Sliding door lock problem

A quick learner from Havertown, PA says:
We have an issue with a sliding door lock showing 7700A on wall side. The Metal prong that pushes the flexible locking button is loose and makes closing difficult, requiring pushing prong to lock door. Do I need to replace the whole lock or Is there a fix for the loose prong.
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Paul from SWISCO responded:
May we see some photos of the lock in question? That may help us find the match you need. Thanks!
A home owner from Havertown,Pa says:
Please see attached images, let me know if you Need More, thanks

I measured wall side lock plate with prong, it is 5 1/4" long. Door lock plate is 4 1/2 long. I hope that helps
User submitted photo of their door hardware.
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Paul from SWISCO responded:
Thank you! It looks like you are looking for the old Andersen strike plate. They replaced this, and the old mortise lock, with the complete 82-037 set. You should still be able to re-use your thumb lever. This is a match for our 82-241 and I don't believe has changed over the years.
A home owner from Havertown pa says:
Does your option have prong or is it
a different mechanism. Is it easy to replace
Or requires some expertise. Otherwise, I appreciate your
Help and would like to order
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Paul from SWISCO responded:
I'm not sure what you mean when you say prong. Which part of the lock is that? I personally don't think it's difficult to install and it comes with directions. You also need to make sure to use the new keeper that comes with the mortise lock, since the old keeper won't work with the new lock.
A quick learner from Havertown says:
Looking at the third image, towards bottom above lower
screw is a metal piece that is loose. It pushes in the opposite
Metal button to allow the door to close all the way, currently we
Have to push the metal piece to align with button.
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Paul from SWISCO responded:
Oh, I see. Yes, the 82-037 has a similar mechanism, though I'm not sure if it's identical. You can see it in the pictures we show on its store page.
A quick learner from Havertown says:
Placed order today, thanks for your help
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