As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BOS CREW REPORTED RADOME SEAL BECAME DISLODGED & WAS FLAPPING ON CAPTAIN`S WINDSHIELD. EMERGENCY DECLARED FLIGHT RETURNED BOS LANDED WITHOUT INCIDENT. ACFT REMOVED FROM SERVICE. REMOVED SEALANT & APPLIED NEW ADHESIVE TO BULKHEAD TO ATTACH NEW SEAL. SYS GND CHECKED NORMAL, OPERATION CLOSED.