You are flying your personal airplane.

You've recently had the instrumentation on the left side of the panel upgraded, replacing it with an electronic primary flight display (PFD), although you've retained the old mechanical analog displays on the right side. En route, your PFD screen begins to flicker intermittently, then goes dark.

Are you required to report this occurrence to the FAA? Are you required to report this occurrence to the NTSB? Explain.