Easy - if that is the accusation, remember that it is not uncommon to write down snags on note paper whilst in flight so as not to forget them, then discuss them with the engineer on the ground before writing up the tech log. Often it's a case of being dense or something like that and the problem is sorted immediately. If someone later comes along and tries to compare discarded notes to whats in the tech log they could wrongly think something suss is afoot.