What was found
DURING HEAVY MAINTENANCE, FOUND LT DOOR SIL CORRODED FRAMES 19-21; LBL 44"-LBL 49". REMOVED CORROSION, MAX MATERIAL LOSS IS L=3.5, W= 4, H= 0.002. LOCATION IS 2" AFT OF FRAME 19, LBL 45-49", REF SRM 51-10-03, 51-12-01. TREATED, PRIMED AND TOP COATED REF. SRM 51-23-04; 51-23-05; 51-23-06.