You can't do a heavy landing check as part of the Di as the seat pans have to be removed. It should also be noted as such in the logbook and in easa land I believe signed by am inspector. You also have to check the tailboom very carefully and possibly spars as a very sudden stop can cause damage as the wings try to continue.
What I remember of the heavy landing check on my glider involved taking out the seat pan, close inspection of the undercarriage and using a powerful torch to check the tailboom.