As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 1 ENGINE, FUEL DRIP AT LOWER COWLS. ACFT GROUNDED. REMOVED AND INSTALLED SERVICEABLE MAIN OIL/FUEL HEAT EXCHANGER, IAW AMM 79-71-02-400-801-F00 AND 79-21-02-000-801-F00. NO LEAKS NOTED IAW TEST 3A OF AMM 71-00-00-700-801-F00 AND TEST 12, AMM 71-00-00-700-807-F00.