What was found
DURING SCHEDULED 1/4D CHECK, ULTRASONIC CRACK INDICATION UNDER STIFFENER WL 218, RBL 10 FWD SIDE OF BLKHD BS 178. REPAIRED PER BOEING SRM.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING SCHEDULED 1/4D CHECK, ULTRASONIC CRACK INDICATION UNDER STIFFENER WL 218, RBL 10 FWD SIDE OF BLKHD BS 178. REPAIRED PER BOEING SRM.