What was found
"UPON INVESTIGATION, AFT INNER CHORD P/N: MM670-35657-003 OF AFT BAGGAGE DOOR SURROUND STRUCTURE WITH CORROSION. REMOVED CORROSION IAW CRJ 700 SRM 51-21-06-001-001-A01, FINAL THICKNESS 0.013"" OF NOMINAL THICKNESS 0.063"" NOT ALLOWED DAMAGE. REQUIRES REPLACEMENT. LOCATED, DRILLED AND DEBURRED NEW AFT INNER CHORD PN MM670-35670-003 IAW CRJ700 SRM 51-40-11-001-001-A01. REPLACED AFT INNER CHORD (PN: MM670-35670-003) IAW CRJ 700 SRM 51-42-06-001-001-A01 AND 51-42-21-001-001-A01. REMOVED EWIS PROTECTION SURROUNDING THE AFT CARGO DOOR SURROUND STRUCTURE"