As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INSPECTION FOUND A .50 INCH CRACK IN BOTTOM OF RIB INSIDE OF RIGHT NAV LIGHT COMPARTMENT (RT WING TIP). THE RIB WAS REMOVED . A NEW RIB WAS FABRICATED AND INSTALLED IAW SRM'S 51-10-1 AND 51-40-2. A DOUBLER WAS ALSO INSTALLED TO REPAIR CRACKED WEB IN SAME AREA.