It's an open and shut case; the entire power-train, transmission and rotors are unserviceable until a Certificate of Release to Service is issued by an approved maintenance organisation. That is only going to happen if:
1. The type of occurrence is one that's listed in the Special Inspections in the MM, and inspected/repaired accordingly.
or,
2. The circumstances are referred to the Type Certificate Holder, and specific-to-incident approved data is used to inspect/repair.