Slightly off topic, I once saw a RCA from CASA that turned into a show cause. An eroplane had flown in excess of a 100 hrly inspection. The operator replied that the over-run was inconsequential and due to operational requirements of the flight in question.
It was then hit with a further RCA and show cause based on its failure to comprehend its obligations to safety and maintenance.
How far over 100 hrs had the aeroplane gone you may ask?
.02 of one hour. 1.2 minutes.