GB
May be out of context, but a defect is a defect is a defect, regardless of who, where, when or why it is discovered. It must be reported and answered appropriately. If you are aware of common problems or latest hot issues (ie, simple AD related inspections currently in a system), it is appropriate to keep an eye out on every A/C you work on. After all, that is our job as maintainers. To be stood down for doing so is obscene.
SC