CASA also Cross-checks Other Docs
It's not just logbooks and M/R's. At our last flight school inspection by a CASA FOI, (early 2009), both instructors were asked to match up M/R times to Logbook times to student record sheets to daily flight sheets.
They were all OK, except that they didn't always match at the M/R end, because it depended on whether that aircraft had been flown by another pilot on the same day, but in respect of the logbook to DFS to SRS they did. In the case of the M/R daily 'total' - this was broken down by checking the flight record sheets of/in each aircraft - which show all flights seperately.
happy days,