It does make you wonder about a/c hours, when the tech log total time says 13,000hrs and only flight time is logged. None sat waiting. Non whilst pax embark/disembark. None from engine start until taxi. Say 10 mins a day, a/c sometimes over 15yrs old. Do the math.
I believe F.Robinson was shocked when he heard that some schools deduct 0.1hrs off the totals for start up and shut down on the R22's.