As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EGB WAS RECEIVED FOR A MAINTENANCE OPERATION NOT RELATED TO THIS EVENT, FROM CUSTOMER. THIS EGB WAS NEVER BEFORE BY THE REPAIR STATION. DURING DISASSEMBLY, IT WAS OBSERVED THAT THE EGB HAD TWO OIL PLUGS - P/N: MS9954-06 (WHERE OIL PLUGS P/N:FK18240 OR P/N:MS9902-06 SHOULD BE INSTALLED AS PER APPROVED DATA)