Some more info on this incident:
CADORS Number: 2009A0488
Date: 2009/06/22
Further Action Required: Yes
O.P.I.: Aviation Enforcement
Narrative: AFR341, Airbus A340-300, enroute from Montreal (CYUL) to Paris (LFPG), declared a medical emergency and requested to divert to St. John’s (CYYT) with an ambulance waiting. The aircraft was cleared direct to St. John’s via right turn at 33,000 ft. Upon VHF contact, the pilot advised they were conducting a fuel dump without an ATC clearance. Traffic ELY002 was re-cleared to avoid the fuel dump area. The pilot was subsequently instructed to advise when a second fuel dump was to begin, pilot did not comply and only advised when the fuel dump was completed. There was no known traffic in the area. The aircraft landed at 04:14Z. TSB Evaluating.