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| 2001 | Launched |  A173 HMS Protector as mv Polarbjorn | |
| 2011-may | Refit | A173 HMS Protector Installation of survey equiment and moving flight deck to aft. | |
| 2011-may-23 | Homeport | A173 HMS Protector arrived HMNB Portsmouth | |
| 2011-jun-23 | Commissioned | A173 HMS Protector assigned to BFSAI
to replace the damaged HMS Endurance as Antarctic & Ice Patrol Ship. Leased from GC Rieber Shipping for an initial period of three years, with an option to extend lease for further 2 years. | |
| 2011-nov-29 | Deployment | A173 HMS Protector departed HMNB Portsmouth for her first (7 month) mission to survey the Southern Ocean and coastal Antarctica and returned on 27 Jun 2012. | |
| 2012-feb-23 | Deployment | A173 HMS Protector to South Shetland Islands to assist Brazilian and Chilean Navy personnel in fire fighting at the Comandante Ferraz Brazilian research base on King George Island. | |
| 2012-aug-8 | Port Visit | A173 HMS Protector to Ipswich for open day and visit by ships company to British Antarctic Survey HQ in Cambridge. | |
| 2012-sep-17 | Deployment | A173 HMS Protector departed Portsmouth for a 8 month mission to survey the Southern Ocean and coastal Antarctica and returned on 10 May 2013. | |
| 2013-sep | | A173 HMS Protector UK MoD purchased ship from GC Rieber Shipping. | |
| 2013-oct-17 | Deployment | A173 HMS Protector departed HMNB Portsmouth for a 19 month double Antarctic summer deployment. Returned to HMNB Devonport on 12 May 2015. | |
| 2013-dec-22 | Deployment | A173 HMS Protector coastal sonar survey of Antarctic Peninsula | |
| 2014-jan | Deployment | A173 HMS Protector sonar survey of South Sandwich Islands, in particular around Douglas Straits between South Thule and Cook Island for the UK Hydrographic Office | |
| 2014-oct-8 | Port Visit | A173 HMS Protector rendezvous with HMS Iron Duke off Grytviken | |
| 2015-apr-1 | Homeport | A173 HMS Protector administratively relocated to HMNB Devonport, from HMNB Portsmouth on 1 Apr 2015. HMS Protector only returned from a double Antarctic summer deployment on 12 May. | |
| 2015-oct | Deployment | A173 HMS Protector departed HMNB Devonport for 4 year Antarctica and Southern Ocean deployment. Returned on 25 Apr 2019. | |
| 2015-dec-1 | Port Visit | A173 HMS Protector As part of South Atlantic deployment, will monitor Japanese Whaling activities, cooperating with RAN and RNZN. | |
| 2016-jan-19 | Port Visit | A173 HMS Protector to Christchurch. 1st visit of RN ship to NZ for 7 years. | |
| 2017-jan-17 | Port Visit | A173 HMS Protector visited Signy Research Station to remove redundant equipment. | |
| 2019-may | Refit | A173 HMS Protector Refit and docking period after 4 year Antarctica deployment. | |
| 2019-aug-20 | Deployment | A173 HMS Protector Departed the Clyde for Antarctic survey mission. | |
| 2019-sep-6 | Port Visit | A173 HMS Protector Called at Hamilton to take on up to 200 tons of aid supplies for Hurricane Dorian relief in the Bahamas. | |
| 2022-oct | Refit | A173 HMS Protector Intensive maintenance period in Montevideo, following S Atlantic and Antarctic operations. | |
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Havyard Leirvik - 
