What was found
STA 840, WL 91, RBL 21, THE AFT I/B FLANGE OF THE 69B01835-1 BODY FAIRING CHANNEL HAS AN AREA APPROX 1.50 SQ INCH WITH MODERATE CORROSION. REPAIRED IAW BOEING ASA CKF-EXB-239 SUPP SHT 1 AND 2. FOUND DURING ACCOMPLISHMENT OF CARGO CONVERSION, ROUTINE C-CHECK, AND ACCOMPLISHMENT OF CPCP TASK CARDS AT BOEING WICHITA (KIAB). WORK ORDER NUMBER MO280, TASK CARD NR 7DI2902, CPCP TASK CARD NR C53-190-01-02.