As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CFOR) WHILE COMPLYING WITH MFG SAFETY COMMUNIQUE NR313 TITLED "FLAP ACTUATOR ATTACHMENT BRACKET AND NOSE RIB ASSEMBLY", DISCOVERED A CRACK ON RIB (PN35-165050-84) ORIGINATING FROM THE LIGHTENING HOLE. AFTER REMOVING THE RT FLAP FROM THE WING AND REMOVING THE ACTUATOR ATTACH BRACKET FROM THE FLAP, ANOTHER CRACK WAS FOUND IN THE SKIN (PN 95-160000-82 UNDER THE BRACKET.