As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FWD CABIN INTERCOSTAL BETWEEN STA 380 AND STA 400 AT RBL 8.5 WL 208.1 UPPER CHORD IS CRACKED. 124-026<[01] INSTALLED NEW INTERCOSTAL-ANGLE UPPER CHORD PN. 143A5410-170 AT FWD CABIN BETWEEN STA; 380 TO STA. 400 RBL 8.5 WL 208.1 REF. SRM. 51-40-02-0G-0;[02] VERIFIED STEP 1;[03] ADDITION TO STEP 1; ADDING DWG REF 143A5400.;[04] VERIFIED STEPS 1 AND 3