As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ORD - FLT 1224 - EN ROUTE SAN-ORD - ON APPROACH SLAT DISAGREE LIGHT ILLUMINATED WHEN FLAPS EXTENDED TO 15 DEGREES. CREW DECLARED AN EMERGENCY. LIGHT EXTINGUISHED AFTER APPROX 30 MINUTES. LANDED ORD WITHOUT INCIDENT. REPLACED FLAPS/SLAT HANDLE SWITCH. SYSTEM GROUND CHECKED NORMAL OPERATION. (M)