Left Outer Join between the same table

Hello,

I am trying to get a list of all expense reports and populate the Expense Report History.Event Date only when the Event Status is a specific one.

So I attempted to do a left outer join between two intances of the same table, first instance to retrieve all the relevant transactions and then the second instance to return the event date only when the event status is the specific one.

When I ran the SQL query, there were no errors but no results were returned either.

Has anyone done an outer join between two instances of the same table? I have attached the SQL code for review.