As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE T/S FAULT CODE 73-30351 RAN NR 1 ENGINE FOR 5 MIN. AFTER RUN NOTED PUDDLE OF FUEL UNDER ENGINE. GROUNDED YES. PERFORMED IDLE RUN FOUND LEAK FROM NR 1 ENG FUEL FILTER COVER (30236) REFERENCE MM 71 71 00. REMOVED AND REPLACED NR 1 ENGINE FUEL FILTER COVER O RING REFERENCE AMM 73-11-02-400-801-F00. ACCOMPLISHED IDLE POWER LEAK CHECK REFERENCE 71-00-00-700-801-F00 "NO LEAKS NOTED"