As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING INSPECTION, FOUND CRACK IN COPPER SURFACE PROTECTION ON TOP SIDE OF RED MAIN ROTOR BLADE FLEX CONTROL UNIT (FCU). A TECHNICAL REQUEST WAS OPENED WITH AIRBUS ENGINEERING, AND IT WAS DETERMINED THAT THE FCU NEEDED TO BE SHIPPED TO THEIR MAIN ROTOR BLADE SHOP FOR REPAIR.