What was found
THE OUTBOARD ATTACH POINTS (2) OF THE RT FLAP FAILED IN FLIGHT. INSPECTION OF THE FLAP INTERIOR FOUND THE FAILURE WAS CAUSED BY HEAVY CORROSION AT THE STEEL TO ALUMINUM INTERFACE OF THE FLAP NOSE RIBS AND BRACKET.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
THE OUTBOARD ATTACH POINTS (2) OF THE RT FLAP FAILED IN FLIGHT. INSPECTION OF THE FLAP INTERIOR FOUND THE FAILURE WAS CAUSED BY HEAVY CORROSION AT THE STEEL TO ALUMINUM INTERFACE OF THE FLAP NOSE RIBS AND BRACKET.