As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PILOT REPORTED THAT AN EMERGENCY WAS DECLAIRED INBOUND, DUE TO A FLAP DISAGREE WARNING WHILE GOING FROM 20 DEGREES OF FLAPS TO 25 DEGREES. THE FLAPS REMAINED AT 20 DEGREES FOR LANDING. MAINTENANCE TROUBLESHOT IAW FIM 27-51-00-815-808 AND ACCOMPLISHED AN FSEU BITE TEST, FOUND THE NR 1 FLAP TRANSMISSION OVERLOAD INDICATOR TRIPPED. THE INDICATOR WAS RESET AND THE FLAP TRANSMISSION WAS LUBRICATED AND SERVICED.