As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EMERGENCY DECLARED FOR A SLAT ASSYMETRIC INDICATION. CREW PERFORMED CHECKLIST. CONTINUED APPROACH AND LANDED WITHOUT INCIDENT. FOUND THE 1ST OBS AUDIO SELECTOR PANEL PRODUCES ABNORMAL EMI THAT IS CAUSING PSEU SENSOR FAULTS WHEN RUDDER TRIM IS SELECTED. DUPLICATED L/E SLAT ASYM MSG. R & R 1ST OBS AUDIO SELECTOR PANEL REF MM 23-51-01-401, IPC 31-11-26-72 ITEM 550. OPS CHECK GOOD.