As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE A/C WAS IN FOR HEAVY CHECK, AFT CARGO COMPARTMENT CORROSION FOUND ON SHEAR CLIP AT FR 81 BETWEEN STR 27-28 RT. AAR MX REPLACED AFT CARGO COMPARTMENT SHEAR CLIP PN 170-66885-001 AT FR 81 BETWEEN STR 27-28 RT, IAW EMB 170/175 SRM 51-41-01 AND SRM 51-41-02. FOR DETAILS OF WORK PERFORMED SEE AAR NRC NR 4500788-1000-0053. A/C REMAINS IN YQG FOR COMPLETION.