As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PILOT REPORTED THAT ON CLIMB OUT THE ENG LOST OIL PRESS. PILOT SECURED THE ENG & RETURNED TO THE DEPARTURE AIRPORT & LANDED. MX FOUND SIGNIFICANT DAMAGE TO THE 3RD STAGE TURBINE & DISASSEMBLED ENG. AFT TURBINE BEARING WAS FOUND DESTROYED, FAILED. 1ST & 2ND TURBINES SHOWED NO IMPACT DAMAGE BUT SHOWED SIGNIFICANT DISTRESS & WERE COATED IN ALUMINUM, FROM COMPRESSOR HOUSING. FURTHER DISASSEMBLY STILL REQUIRED. SDR WILL BE AUGMENTED ONCE TEARDOWN IS COMPLETE & ROOT CAUSE IS ISOLATED.