Sliding glass door lock

A quick learner from Verona, NJ says:
The lock mechanism is malfunctioning, where the hook does not come back out to catch the other end.
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Tom from SWISCO responded:

Hello again! This looks like an Andersen brand mortise lock. Please start by looking at our 82-037 to see if this will replace the original.

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Detail of receiver 82-037
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