| 1980-jan-28 | Laid down | Laid down  A132 RFA Diligence | |
| 1980-apr-03 | Launched | Launched A132 RFA Diligence as ms Stena Inspector | |
| 1982-apr | Commissioned | Commissioned A132 RFA Diligence into RFA on charter from Stena Caribbean Line, London | |
| 1983-oct | Fate: transfered | Fate: transfered A132 RFA Diligence purchased by MoD for RFA from Stena | |
| 1983-nov-12 | Refit | Refit A132 RFA Diligence rapid refit for RFA at Clyde Dock Engineering over 2 months to include additions to diving support facilities, accommodation, repair workshops, heavy duty cranes and equipment to allow alongside working with other ships, plus communications and storage space upgrades, until 29 Feb 1984. | |
| 1984-mar-12 | Commissioned | Commissioned A132 RFA Diligence Re-commissioned as fully owned RFA vessel | |
| 1991-apr | Deployment | Deployment A132 RFA Diligence departed for South Atlantic for maintenance support. Arrived on station during May and departed for UK during Nov 1992. | |
| 1993-may | Deployment | Deployment A132 RFA Diligence departed for South Atlantic for maintenance support. Arrived on station during Jun. | |
| 1993-jun | Deployment | Deployment A132 RFA Diligence operating in the S Atlantic and around the Falkland Islands for 11 month deployment | |
| 1994-nov | Deployment | Deployment A132 RFA Diligence operating in the S Atlantic and around the Falkland Islands for 6 month deployment, until 28 Apr 1995. | |
| 1996-aug-18 | Deployment | Deployment A132 RFA Diligence operating in the S Atlantic and around the Falkland Islands for 3 month deployment | |
| 2003-jan-30 | Deployment | Deployment A132 RFA Diligence Operation Telic to support combat, post-combat and reconstruction operations in Iraq, completing 11 Aug 2003. | |
| 2003-nov | Refit | Refit A132 RFA Diligence until May 2004, refit in Singapore | |
| 2004-dec | Deployment | Deployment A132 RFA Diligence ordered to east coast of Sri Lanka, with HMS Chatham, to assist in humanitarian operations following the tsunami, triggered by the Banda Aceh (Indonesia) earthquake of 26 Dec 2004. | |
| 2006-apr | Refit | Refit A132 RFA Diligence maintenance period at Simonstown, South Africa | |
| 2006-oct-11 | Deployment | Deployment A132 RFA Diligence Operation Vela (Green Eagle) in support of Exercise Green Eagle phase of Operation Vela, off Sierra Leone | |
| 2007-feb | Refit | Refit A132 RFA Diligence at Northwestern Shiprepairers and Shipbuilders Ltd (NSSL) in Birkenhead for Major Life Extension work. | |
| 2013-jul-08 | Deployment | Deployment A132 RFA Diligence departed HMNB Portsmouth for East of Suez support deployment, for in excess of 5 years. | |
| 2013-sep | Deployment | Deployment A132 RFA Diligence Cougar 13 already stationed east of Suez, RFA Diligence will provide engineering support to the participants in Ex Cougar 13, remaining in the area once it completes. Returned to UK in Nov 2014 | |
| 2014-aug | | A132 RFA Diligence UK Govt announced RFA Diligence would be sold | |
| 2014-nov | Refit | Refit A132 RFA Diligence at Birkenhead by Northwestern Shiprepairers and Shipbuilders Limited | |
Aircraft
Oresundsvarvet AB - 