PBS array subjobs that fail

Sometimes a couple of subjobs from an array will fail for a variety of reasons.

What’s the easiest way for a user to track those reasons?

I understand that there is some output available to the epilogue - but that’s not accessible to the user.

And I know that the .e. log file should be available. But is there a quick report that a user can get listing the indicies that failed and the reason for each failure?