As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LOWER FX EXTERNAL SKIN SURFACE RT POTABLE WATER TANK SERVICE CONNECTOR ATT DOUBLER FOUND SURFACE CORROSION AT STA 975 TO STA 980. CORROSION BLEND OUT 0.040 INCH BY 1 INCH BY 3 INCH EXCEED SRM 53-30-01 FIG 1 LIMITS, DOUBLER REPLACED AS PER SRM 51-10-01 PG 9.