I agree entirely with Capt. Peacock.
If in doubt put it in the book. How would you feel if you did nothing, and then something serious then happened? You would feel really bad for a long long time.
The acid test I use is to ask myself whether I would be happy for my wife and kids to go flying in that aircraft? If the answer is no, then it goes in the book. The buck stops with you as Captain. Simple as that.