What was found
AIRCRAFT IN BASE MAINTENANCE: CORROSION STRINGER 42L LOCATED BTW FR59 TO FR60 IN AFT CARGO COMPARTM ENT L= 5.236 INCH, W= 0.837 INCH, D= 0.003 INCH. MAINTENANCE PERFORMED PERMANENT REPAIR ON STRINGER 42L LOCATED BTW FR58 TO FR61 IN AFT CARGO COMPARTMENT IAW EA #366853.