As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SIX SECONDS AFTER TURNING ON THE DEICE BOOTS THE LEFT AND RIGHT MIDDLE LEADING EDGE BOOTS FAILED. THE RIGHT OUTBOARD LEADING EDGE AND VERTICAL FIN AND LEFT INTAKE BOOTS ALL FAILED IN FLIGHT. RETURNED TO SEA. REMOVED AND REPLACED RIGHT PRESSURE REGULATOR VALVE IAW MM 30-10-06, OPS CKS GOOD.