What was found
DURING C CHECK, FOUND CORROSION ALONG AFT PRESSURE BULKHEAD LOWER ATTACH ANGLE BL20 LT TO BL20 RT, AFT PIT. REMOVED LOWER T-CAP FROM BL20 LT TO BL20 RT, DRILLED NEW SECTION OF CAP, FABRICATED SPLICE DOUBLERS AND INSTALLED IAW DC9 SRM 53-04, FIG 9 , AND DAC FAX FILE MSG C234 AND REA 97851.