As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING HEAVY MAINTENANCE CHECK, CORROSION WAS FOUND OUT OF LIMITS BETWEEN BS 720B AND 720C AT STRINGER 28R. REMOVED CORROSION IAW B727 SRM 511006. REMOVED STRINGER IAW B727 51-30-02. FABRICATED NEW STRINGER PER SAMPLE FROM BAC1490131. TREATED AND PRIMED IAW B727 SRM 51-10-02, MM 51-20-02. INSTALLED IAW B727 SRM 53-10-03 AND 51-30-02.