Why is it that dealing with CASA documents is like trying to solve the riddle of the Sphinx (which has been solved but it took hundreds of years)?
The way I read it is that CAR42B does include the engine (as noted in AWB 85-004 Par 3) and that AD-ENG-4 specifies a schedule of condition checks. Therefore, if we obsolete AD-ENG-4, all we lose is the schedule of checks. The impact of this would need to be taken into account.
So, am I getting close?
Walrus