As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
REF TASK 78472002 #1 ENG FOUND DAMAGE CU-NI-IN CONCAVE SIDE BLADES 3,6,7,14 AND CONVEXE SIDE BLADE 2 GREATER THAN AREA "X" WITH NO WEAR ON BASE MATERIAL, DOVE TAIL PRESSURE FACE REF B737-800 AMM 72-21-02-200-801-F000 STEP 2K(1)(C). GROUNDED - YES. REMOVED AND REPLACED ALL 24 FAN BLADES AND ALL 24 SHIMS (COMPLETE SETS) ON #1 ENG REF B737-800 AMM 72-21-02-900-801-F00. PLT CLEARED.