What was found
MHV - SURFACE CORROSION ON FORWARD SIDE OF FRAME 1ST IN FRONT OF AFT PIT AFT BULKHEAD BETWEEN LONGERON 30 AND 29. FABRICATED NEW SECTION OF RIB AND FILLER. REMOVED CORROSION OFF OF FRAME THAT WAS WITHIN LIMITS. REMOVED 2.70 BY 80 SECTION OF FRAME THAT WAS OUT OF LIMITS. ALODINED AND PRIMED FRAME AND FABRICATED PARTS. INSTALLED FABRICATED PARTS PER SRM 53-01 FIG 1, 51-10-3, 53-04 PAG 191, 51-30-2, AND 51-30-5. (M)