Shortly after re-entering service, "Amundsen" began its career as a research vessel, departing for King William Sound. The ship remained in the Arctic for 398 days, split over two missions, an expedition to the Beaufort Sea and the other in support of Inuit communities in Nunavik. In 2004, "Amundsen" became the first Canadian vessel to offer hospital services to the Aboriginal peoples living in remote locations in Canada's north since the controversial was taken out of service in 1970. The ship supports ArcticNet's marine-based research program. In July 2007, "Amundsen" departed for a 15-month expedition to the Canadian Arctic to work on several projects. In 2009, the ship was sent to collect new environmental data in the Beaufort Sea in co-operation with the oil exploitation sector. In August 2010, "Amundsen" responded to 27 August grounding of the cruise liner "Clipper Adventurer" in the Coronation Gulf. Arriving on 29 August, the icebreaker took off the 120 passengers and crew and brought them to Kugluktuk, arriving on 30 August.