Frank Feighan (Fine Gael) | Oireachtas source

If I am a parent of a young child and there is a faulty tyre or a break disc on a public bus, how is that inspected? Does the child tell the teacher in the school or do schools notify the RSA? Is there a whistleblower's charter? I know that the information can be disseminated with modern communication techniques, but what does the RSA advise a parent or student to do?