As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 1 ENGINE MAIN FUEL PUMP HAS HISTORY OF FUEL LEAKAGE FROM THE PAD CAVITY DRAIN DURING ENGINE START. INTERMITTENT INPUT SHAFT SEAL LIFT OFF IS SUSPECT. ACFT GROUNDED. REMOVED NR 1 ENGINE FUEL PUMP PACKAGE REF AMM 73-11-01-000-801-F00. INSTALLED FUEL PUMP PACKAGE REF B737-900 AMM 73-11-01-400-801 STEP 3A-3H. COMPLETED FUEL PUMP PACKAGE INSTALL REF AMM 73-11-01-400-801-F00. ACCOMPLISHED T/C N8473001, HMU INSTALL. ACCOMPLISHED GROUND VERIFICATION , NO LEAKS NOTED.