What was found
DURING SCHEDULED MAINT CHECK, FOUND STRINGER CLIPS CRACKED AT BS 400, S27L, AND 28L, AT BS 747, S10R, AT BS 500D, S3R AND 19R/L, AT BS 406, S3R, AT BS 380, S7L, AT BS 500A, S1, AT BS 727B, S14L, AT BS 663, S10R AND L, AND AT BS 727A, S16R. REPLACED ALL PER BOEING STRUCTURAL REPAIR MANUAL.