As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: DURING APPROACH IN MODERATE ICING WE ENCOUNTERED AIRSPEED UNRELIABLE INDICATIONS. PRIMARILY, MIN MANEUVER AND STALL SPEED INDICATORS CONVERGED WITH MAX MANEUVER SPEED BAND CREATING 3 KT "COFFIN CORNER"; AIRCRAFT LANDED SAFELY AT MSP. ACCOMPLISHED CDS BITE PER FIM 31-62-00. NO CURRENT PREVIOUS OR ACTIVE FAULTS NOTED. NO PRIOR HISTORY. NO FAULT FOUND.