As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFT WET AREA OF STA 947 FLOOR SUPPORT AT LBL 28 HAS CORROSION. GROUNDED - YES. REMOVED DAMAGE FOUND TO BE OUT OF LIMITS LOCATED AND DRILLED NEW INTERCOSTAL IAW B737-800 SRM 51-40-05-0G-0 TO BE INSTALLED ON MIG 5 OK313487 W/O 1020399-2000-0126W=2 O=.080 R=.062 L=1 D=.018.