What was found
REFERENCE LOG 12179648 - FILLER MISSING OR FAILED TO POLYMERIZE ON SEVERAL REPAIRED AREAS OF #1 ENGINE ABRADABLE SHROUD BETWEEN THE 10 AND 2 OCLOCK POSITION. GROUNDED - YES. REMOVED NO# 1,2,3,4, FAN BLADES ON ENG# 1 TO FOM. PREPPED AND CLEARED AREAS WITH MISSING FILLER THAT FAILED TO POLYMERIZE FROM THE 10 OCLOCK TO THE 2 OCLOCK POSITION REPAIRED ABRADABLE SHROUD IAW B-737NG AMM 72-24-02-802-F00. REINSTALLED BLADES 1,2,3,4 AFTER MAINTENANCE IAW B-737NG AMM 72-21-02-000-802-F00. ROTATED FAN AND BLADES MOVED FREELY NO BINDING.