As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING ACCOMPLISH REINSPECT OF #1 ENG ESN 896938 FOUND PIN STAGE 3 AT 3 OCLOCK POSITION ROTATED 90 DEG AND MIGRATING. REF SB CFM56-7B-72-0986-1 INITIAL WRITE-UP L/P #11759761. GROUNDED - YES. REMOVED AND REPLACED #1 ENGINE REF TC 78471000 AND 78471001.