As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING ANNUAL INSPECTION, FOUND L/E RIB CRACKED ON RT FLAP, WHERE FLAP ACTUATOR IS ATTACHED TO FLAP. FOUND WITH BORESCOPE THRU ROLLER ACCESS HOLE. CRACK WAS AROUND FORWARD NUT PLATE ON RIB. FLAP RIGGING OR USING FLAP AS STEP GETTING IN AND OUT OF ACFT. RECOMMEND PLACARDING FLAP FOR "NO STEP".