As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 4331 - DURING FLIGHT FROM ATL-ROA AIRCRAFT ENTERED ICING CONDITIONS AND STARTED ACCUMULATING ICE. CREW HAD A FAILURE OF THE LEFT AND RIGHT O/B STABILIZER AND VERTICAL FIN DE-ICE BOOTS. CREW DECLARED AN EMERGENCY AND DESCENDED TO 7,000 FEET. CREW FOLLOWED DE-ICE FAILURE CHECKLIST, BUT BOOTS DID NOT START OPERATING. CREW LANDED SAFELY IN ROA. MAINTENANCE REMOVED AND REPLCED THE EJECTOR VALVE. OPERATIONAL CHECKS WERE GOOD. AIRCRAFT RETURNED TO SERVICE. (M)