As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFT PIT LH TRANSITION STA 727I+9 TO 727E+10 HAS NUMEROUS SPOTS OF CORROSION. GROUNDED - YES. EVALUATED CORROSION ON AFT PIT L/H TRANSITION AT STA 727I+9 TO 727E+10 ORIGINAL MATERIAL = .040, MMATERIAL REMOVED = .010, MATERIAL REMAINING = .030 AT LOWEST READING. FOUND TO BE OUT OF LIMITS IAW B737-900ER SRM 53-00-53-1A-2. REPAIRED TRANSITION ZEE CHANNEL AND RESTORED FINISH IAW B737-900ER SRM 53-00-53-2R-5.