As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
TRAILING EDGE FLAP DISAGREE WARNING LIGHT ILLUMINATED WHEN FLAPS EXTENDED FROM FLAPS 15. PERFORMED COM PROCEDURES AND DECLARED AN EMERGENCY. AN UNEVENTFUL LANDING WAS MADE WITH FLAPS AT 20. MAINTENANCE PERFORMED OPERATIONAL CHECK OF FLAPS, CHECKED OK.