What was found
MAIN UPPER CABIN, SEC 46 AT BS 1681 HAS AFT SHEAR DECK WITH SPOTS OF SURFACE CORROSION AND BARE METAL ON ENTIRE LENGTH OF UPPER STRUCTURE FROM LEFT TO RIGHT SIDES OF FUSELAGE WHERE NUTPLATES ARE INSTALLED FOR FLOORBOARDS. REMOVED CORROSION AND FOUND TO BE OUT OF LIMITS. ALL OTHER AREAS OF SHEAR WEB ARE WITHIN LIMITS IAW SRM 53-60-51-1A, FABRICATED REPAIR DOUBLER AND INSTALLED IAW 53-60-51-2R REPAIR 2, ALTERNATIVE I, ALODINED AND PRIMED THE AFT SHEAR PLATE IAW SRM 51-20-01-0G.