What was found
NR 2 ENG PYLON STRUT, AFT FAIRING HEAT SHIELD LOWER SPAR STRUCTURE, PITTING CORROSION FOUND THROUGHOUT SPAR STRUCTURE, CHORDS, FRAMES 3, 4 & 5. EVIDENCE OF PITTING CORROSION AND HEAT DAMAGE ON LOWER SIDE OF WEBS. REF 54-51-71 PG 6. POSSIBLE CAUSE WAS AFT FAIRING HEAT SHIELD THERMAL BLANKETS 1 THRU 6 WERE TORN AND WATER LOGGED, SEALS DAMAGED AND STRUT DRAIN CLOGGED. REF AMM 54-54-01 PG 426, 54-54-03 PG 406 AND 54-55-01. AD 2002-07-07 AND SB 777-54A0017 ARE RELATED TO THIS BUT HAVE NOT BEEN ACCOMPLISHED. COMPLIANCE WITH AD WILL CORRECT CONDITION. NOTE: STRUT DRAIN WAS CLOGGED. PRIMARY FIRE SEAL DAMAGED. HEAT SHIELD SEAL DAMAGED. SECONDARY FLUID SEAL DAMAGED. PARTS WILL REQUIRE REPAIR OR REPLACEMENT.