As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FWD PIT R/H TRANSITION HAS AREAS OF CORROSION STA 500D TO STA 500I. GROUNDED - YES. REMOVED CORROSION ON TRANSITION R/H SIDE STA 500D TO 500Z OFUND IN LIMITS IAW B737-800 SRM 53-00-53-1A-2. UPON FURTHER EVAL FOUND PUNCTURE AT STA 500G -500H REPAIRED IAW B737-800 SRM 53-00-53-2R-5.W= 1" O= .040 R= .037" L= 2" D= .003".