As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FOUR EACH FITTINGS, P/N 69-20773-7, LOCATED BETWEEN THE CENTER TWO AFT FLAP TRACKS ARE CRACKED AT THE LOWER FLANGE OF THE FITTINGS. CRACKS RANGE FROM 1 INCH TO 6 INCHES DOWN THE LOWER FLANGE. SUSPECT CAUSE WOULD BE EXCESSIVE BOWING OF THE MID-FLAP.