What was found
FWD CARGO AFT BULKHEAD CENTER LOWER RAIL ASSY ANGLE CORRODED AROUND FASTENER HOLES. CORROSION AROUND FASTENER HOLES; FOUND OUT OF LIMITS REF. B737-7 SRM 53-30-08-1A-1.RECEIVED NEW RAIL ASSY. P/N 143A9485-35 TAG # WN14414; PO# 1728471; PART BEING INSTALLED ON CARD # TTG8Q004ERSM; LOCATED AND DRILLED NEW RAIL ASSY. P/N 143A9485U35 IN REF B737-700 SRM 51-40-02-0G-0; LOCATED AND DRILLED NEW RAIL ASSY. P/N 143A9485U30 IN REF B737-700 SRM 51-40-05-0G-0; TREATED AND APPLIED PRIMER IN REF B737-700 SRM 51-=20-01-0G-0. TOP-COAT APPLIED AT FWD CARGO BULK-HEAD CENTER LOWER RAIL ASSY IN REF B737-700 AMM 51-21-73-370-803; INSTALLATION AT NEW RAIL ASSY. P/N 143A9485U35 WILL BE ACCOMPLISH ON TASK CARD TTG8Q004ERSM STEP #42.