As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING TRANSIT CHECK, A FUEL LEAK WAS DETECTED IN THE LEFT ENGINE. MAINTENANCE PERSONNEL PERFORMED REVISION DETECTING A FUEL LEAK AT TBV MAST DRAIN; SO THE TBV WAS REPLACED IAW AMM 75-23-01. THE LH ENGINE WAS TESTED AND IT WAS DETECTED OTHER FUEL LEAK AT HPTACC VALVE; SO THE HPTACC VALVE WAS REPLACED IAW AMM 75-21-01 AND FUEL HEAT EXCHANGER WAS REPLACED IAW AMM 79-21-02, TESTED CORRECT.