As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING APPROACH WHEN SELECTING FLAPS TO 25 GOT LE SLAT DISAGREE. EXECUTED A GO AROUND AND COMPLIED WITH QRH. EMERGENCY WAS DECLARED. PERFORMED T/S IAW FIM 27-51 FAULT TREE 809. BITE TEST SHOWED NO CURRENT FAULTS. CYCLED FLAPS AND SLATS FULL UP & DOWN SEVERAL TIMES WITH NO FAULTS. NO 180 DAY HISTORY. SUSPECT THAT THE FLAP LEVER WAS NOT FULLY ENGAGED INTO THE DETENT. A/C OK FOR CONT'D SVC.