To work out which problems need to or should be solved. I usually ask a few questions, is it something that will repeat again, i.e. cause the same issue?
How serious is the issue? Is it life threatening? Will it cause an injury? Is there a cost impact? Or is it just a nice to have on someone’s wish list.
Next up what’s the state of the issue, if left alone will it get worse, stay the same or go away?
Based on these type of questions you work out of a problem is worth resolving and if you allocate points to each of the questions you can come up with a priority schedule to resolve the problems. (I come from an mechanical engineering background) image below gives an idea, change the wording to suit but you’ll get the idea. Score 1-10 for each column and add them up for final score, I’ve a spreadsheet that does that and then sorts so in theory a to-do list.
So that’s the approach I’ve used to review if problems need to be resolved, what does everyone else use?