As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
REF ASA T/C #SBCFM56-7B-72-1033-1 AD 2018-26-01: CFM56-7B FAN BLADE ROOT ULTRASONIC INSPECTION (ALL BLADES) FOUND BLADES #6 FAILED ULTRASONIC INSPECTION ON THE CONCAVE SIDE. BETWEEN 35% - 57% OF FULL SCREEN HEIGHT N MULTIPLE PLACES. ON #1 ENG S/N 962672. GROUNDED - YES. REPLACED #6 AND #18 FAN BLADES ON #1 ENG, REF ASA T/C 78472010.