What was found
PASSENGER CABIN FWD WET AREA BETWEEN STA 294.5 AND 332.1 SUPPORT L ANGLE ATTACHED TO OUTBD SIDE OF INNER DOOR CREASE BEAM CHORD IS CORRODED UNDER CENTER DOOR TRESHOLD AS MARKED TOP SURFACE / REMOVED CORROSION AND VERIFIED A MATERIAL LOSS OF .018' THE ORIGINAL THICKNESS BEING .090' AND MAX ALLOWABLE LOSS OF .004' FOUND TO BE OUT OF LIMITS IAW SRM 51-10-02-0G-0 AND SRM 53-10-155-1A-2 TASK C(2) FIG 103 DETAIL D REMOVED OUT OF LIMITS LOWER MAIL DOOR SILL AND INSTALLED NEW P/N 141A8312-5 A-TAG# WN3644 IAW SRM 51-40-02-0G-0 AND BOEING DWG 141A8310 REV. D