As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: SKIN BULGE ;OCATED AFT OF STA 360 BUTT JOINT ALONG STRINGER 23L THE BULGE MEASURES APPROXIMATELY 1.2" BY 1.1" WITH 0.05" PROTUSION. SKIN AND STRINGER REPAIRED (DOUBLER) PER EA 376958 AND SRM 53-30-01-1A-1, 53-30-01-0L-1.