In three years time (at most), the maintenance company responsible for the aircraft will be liquidated. If this is a problem with counterfeit parts, it should be interesting to see how the provenance of the parts is tracked down.
Turkmenistan rebuilds and yellow tags a lot of jet engines. Thousands a month. This always puzzled me.
Step one will involve the maintenence crew showing what supplier the parts came from, and that supplier showing that each part came from the manufacturer.
The more difficult Step 2 will involve showing that there is exactly one of each serial numbered part (i.e., that there does not exist two or more parts with the same serial number, indicating that one is counterfeit).