What was found
SEVERAL CORROSION POINTS ON FRAME AT STA Y=1250 BETWEEN LONGS 27L TO 27R AFT CARGO COMPT CORROSION WAS REMOVED; MEASURED AND FOUND OUT OF LIMITS IAW SRM 51-10-3 PAR 26 AND 53-01, FIG 1, BETWEEN L-28 TO L-28R. UT WAS ACCOMPLISHED ORIGINAL THICKNESS IS 0.063" AND REMAINING IS BETWEEN L-27-28 LT AND L-27- L-28 RT 0.056", THEREFORE WITHIN LIMITS. BUT MINIMUN REMAINING BETWEEN L-28L-28R IS 0.45", THEREFORE THIS SECTION IS OUT OF LIMITS IAW SRM 53-01, FIG 1. FRAME SECTION BETWEEN L-28L TO 28R WAS REPAIRED IAW SRM 53-03, FIG 2A.