I asked the same thing to the FOIA FAA representative and even brought up the 44709 ride.
They responded that accidents are expunged from a record after 5 years (provided there isn't another accident). Enforcement actions are expunged after 2 years for administrative and indefinite for legal action. They proceeded to state that if I had any of the above then it must have been expunged and is no longer associated with my name or certificate.
The whole point of my post was for some feedback just in case someone knew more specifics or has been in the same boat. Overall I think you're correct to be conservative just in case it does pop up somewhere.