As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
REF LOG PAGE 60093274 DURING REMOVAL AND REPLACEMENT OF FUEL OIL HEAT EXCHANGER FOUND SERVO FUEL HEATER LEAKING ON #2 ENGINE. GROUNDED - YES. REMOVED AND REPLACED SERVO FUEL HEATER PER B737-900 AMM 73-11-07-400-801-F00 AND IDLE POWER LEAK CHECK GOOD PER AMM 71-00-00-700-801-F00.