As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFT CARGO COMPATMENT, RIGHT FRAME SPLICE CORRODED AT STA 727I (AREA MARKED IN RED). GROUNDED - YES. EVAL'S CORRODED AFT PIT R/H FRAME SPLICE AT STA 727I. CORROSION IS LOCATED ON THE INNER CHORD. DAMAGE IS NOT PERMITED ON THIS LOCATION IAW B77-900ER SRM 53-00-07-1A-1.4.A.(2).(4). REPAIRED AFT PIT R/H FRAME SPLICE AT STA 727I IAW B737-900ER SRM 51-40-05 AND SRM 51-40-02.