As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RUNNING FUEL LEAK FROM THE NR 2 ENGINE FUEL/OIL HEAT EXCHANGER DRAIN LINE. ACFT GROUNDED. REMOVED AND REPLACED #2 ENGINE FUEL/OIL HEAT EXCHANGER IAW AMM 79-21-02, STEPS 2.E.(1)-3.H.(1). INSTALLATION FAILED STEP 3.G.(4)(H)30. RUN ON TORQUE OF BOLTS (21) IS BELOW THE MINIMUM 2 INCH-POUNDS. REMOVED AND REPLACED THE NR 2 ENGINE MAIN OIL/FUEL HEAT EXCHANGER UNIT IAW AMM 79-21-02-010-801-F00, REMOVE AND REINSTALLED SERVO FUEL HEATER IAW AMM 73-11-07-000-801-F00, AND AMM 73-11-07-400-801-F00. LEAK CHECKED GOOD.