What was found
AIRCRAFT IN BASE MAINTENANCE: CORROSION STRINGER 42L LOCATED BTW FR 56 TO FR 57 IN AFT CARGO COMPARTMENT MEASURE OF CORROSION ARE: L= 0.685 INCH, W= 0.335 INCH, D= 0.002 INCH. MAINTENANCE PERFORMED REPAIR ON STRINGER 42L. LOC BTW FR 56 TO FR 57 IN AFT CARGO COMPARTMENT, THIS REPAIR IS CATEGORY: A, I.A.W A319 SRM 53-41-13-300-010 STEP 2.A ITEM 21.