You can conduct whatever you like - however your IA will require that a
leak down test be performed since it is prescribed under Part 43.



Doug wrote:

Does anyone do an "automotive" type compression test on their aircraft
engine? I think this kind of "dynamic" test might show problems (such
as valves not opening all the way), that a leakdown test would not
(and vice-versa). Anyway my annual is coming up and I want to do it. I
imagine something that screws in and has a long hose to the guage, so
no one has to stand behind the propellor.