As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING OVERNIGHT CHECK AT MEX STATION, IT WAS DETECTED A FUEL LEAK AT RIGHT ENGINE. MAINTENANCE PERSONNEL PERFORMED REVISION. DETECTING THE RIGHT ENGINE HPTACC VALVE LEAKING. THE HPTACC VALVE WAS REPLACED, IAW AMM 75-21-01, TESTED CORRECT.