What was found
LESSOR ITEM A659:APU UNDER EXHAUST ACCESS FAIRING AT FRAME #86 LH LOWER SIDE FOUND WITH SIGN OF CORROSION AT 7 OCLOCK POS. GROUNDED - YES. CUT OUT CORRODED SECTION OF FRAME 5.375"L X 2.0"W. FABRICATED, LOCATED, AND DRILLED REPAIR PARTS. ALODINED, PRIMED, AND PAINTED REPAIR PARTS. INSTALLED REPAIR PARTS IAW A320 SRM 53-51-12-300-001 FRAME 86 REPAIR REV.147 DATED 11/01/2023. THIS IS A CATEGORY A REPAIR.