As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING THE MX BASE CHECK FOUND CORROSION ON THE RT OTBD FLAP ASSY RIB. THE ACFT WAS REMOVED FROM SERVICE. CORROSION WAS FOUND OUT OF LIMITS ON RT OTBD FLAP ASSY RIB. CLEANED LIGHT SURFACE CORROSION ON RT OTBD FLAP SUPPORT ATTACH POINT IAW SRM 51-21-42. TREATED, PRIMED AND TOP COATED AREA IAW SRM 51-21-17 AND 51-21-27.