Collection
Inquiry reports
Published Ministry of Defence Service Inquiries (SIs), Board of Inquiries (BOIs) and Military Aircraft Accident Summaries (MAAS) and other inqury reports.
This collection provides all published Service Inquiry (SI) reports. A number Board of Inquiry (BOI) and Military Aircraft Accident Summary (MAAS) reports are also available below. Links to the UK Government Web Archive have been provided below were reports were previously published on the Ministry of Defence’s old website
Related information
Service Inquiries (SI)
A service inquiry is held after an military incident, which results in death or serious injury in order to understand the circumstances, and any changes to procedures or equipment to prevent recurrence.
For guidance about Service Inquiries please see the ‘Guide to Service Inquiries (JSP 832)’ available in the UK Government Web Archive.
- Update on the Service Inquiry into the deaths on 14 February 2013 in the Cairngorms National Park
- Service Inquiry into the death of a soldier from a gunshot wound at Camp Taji, Iraq on 2 January 2017
- Service Inquiry into the death of a soldier in a Road Traffic Accident at Al Asad Air Base, Iraq on 31st January 2018
- Service Inquiry into the accident involving HAWK T Mk1A XX204 on 20 March 2018
- Service inquiry into the fatal diving incident at the National Diving and Activity Centre
- Service Inquiry into the accident involving a Hercules C-130J Mk4 (ZH873) Heavy Landing Incident on 25 August 2017
- Service Inquiry report into the Loss of Watchkeeper (WK043) Unmanned Air Vehicle over Cardigan Bay in West Wales on 24 March 2017
- Service Inquiry report into the Loss of Watchkeeper (WK042) Unmanned Air Vehicle over Cardigan Bay in West Wales on 3 February 2017
- Service Inquiry into the accident involving a Griffin MK1 ZJ241 at Yr Aran, Snowdonia, Wales
- Service Inquiry report into the death of a soldier participating in a Night Live Firing Sniper Cadre at RAF Tain Range Field Firing Area on 1 November 2016.
- Service Inquiry report into the Challenger 2 incident at Castlemartin Ranges, Pembrokeshire on 14 June 2017
- Service Inquiry into the death of a soldier participating in live fire tactical training at Heely Dodd Range, Otterburn on 22 August 2016
- Service Inquiry report into the death of a soldier during an annual fitness test at Brecon on 19 July 2016
- Service Inquiry report into the deaths of 3 soldiers in the Brecon Beacons, Wales, in July 2013
- Service Inquiry into the aircraft accident involving YAK52 G-YAKB on 8 July 2016
- Service Inquiry into the death of a soldier whilst parachuting at Bad Lippspringe, Germany, on 29 September 2015
- Service Inquiry into the death of a civilian climber during Rescue 137 on 25 February 2013
- Service Inquiry into the Watchkeeper (WK006) Unmanned Air Vehicle (UAV) accident at Boscombe Down Aerodrome on 2 November 2015
- Service Inquiry into an accident involving a Puma HC MK 2 (XW229) in Kabul, Afghanistan on 11 October 2015
- Service Inquiry: accident involving the Falcons display team on 22 June 2014
- Service Inquiry into death of a serviceman from 5 Rifles in Paderborn, Germany on 18 June 2015
- Service Inquiry into the Watchkeeper (WK031) Unmanned Air Vehicle (UAV) accident at West Wales Airport on 16 October 2014
- Service Inquiry into death of a Royal Marine during an endurance march on Dartmoor Training Area on 28 May 2015
- Service Inquiry: accident involving Lynx Mk 9 ZF540 on 26 April 2014
- Service Inquiry: incident involving Voyager ZZ333 on 9 February 2014
- Service Inquiry: incident involving Gazelle XZ936 on 2 June 2014
- Service Inquiry: accident involving Tornado ZD743 and Tornado ZD812 over Moray Firth
- Service Inquiry: accident involving Sea King ZE428 at RNAS Yeovilton
- Service Inquiry: accident involving Tucano ZF349 at RAF Linton-on-Ouse
- Service Inquiry: accident involving Hawk TMk1 XX177 at RAF Scampton
- Service Inquiry investigating the accident involving Chinook ZA708 on 10 Aug 10
- Service Inquiry into the aviation fuel contamination at Mount Pleasant Complex during the period 25 Jun to 05 Aug 11
- Service Inquiry report into the incident involving Lynx XZ210 on 1 Dec 11
- Service Inquiry report into the occurrence involving Squirrel HT1 ZJ276 on 20 April 2012
- Service Inquiry report into the occurrence involving Chinook ZA671 on 07 April 2012
- Service Inquiry: shooting incident onboard HMS Astute, Southhampton
- Service inquiry: accident involving Red Arrows Hawk T Mk1 XX179 near Bournemouth
- Service Inquiry investigating the accident involving Unmanned Air System (UAS) Hermes 450, ZK515 on 2 October 2011
- Service Inquiry: low flying incident Tornado ZA557, Peebles
- Service Inquiry: incident involving Chinook ZH898, oxfordshire
- Service inquiry investigating the accident to Tornado GR4 ZG792 on 27 Jan 11
- Service Inquiry report into accident involving Puma XW211 on 5 Jul 2011
- Service Inquiry: grounding of HMS Astute, Isle of Skye
- Service Inquiry: Puma ZA934 helicopter crash, Catterick
- Service Inquiry report into the Red Arrows accident in Crete on 23 March 2010
- Service Inquiry investigating the accident to Tutor G-BYXR
- Service Inquiry into the flooding of HMS Endurance
- Service Inquiry into the death of Capt JA Philippson
- Service Inquiry: investigating the accident to Tornado F3 ZE 982
- Service Inquiry investigating the accident to Tutor Aircraft G-BYUT and G-BYVN
Internal reviews
Board of Inquiries (BOIs)
A number of the BOIs previously published on mod.uk can be found in the list below. If you are unable to find the BOI you’re looking for please visit the Boards of Inquiries available at UK Government Web Archive.
- Board of Inquiry report into the death of Pte James
- Board of Inquiry: Squirrel ZJ 247 helicopter crash, Kingscott Valley
- Board of Inquiry report: death of English D P CEM1
- Board of Inquiry report investigating the accident to Tornado GR Mk4, ZA554
- Board of Inquiry report into the grounding of HMS Superb
- Board of Inquiry into the loss of HMS Portland's Lynx XZ724 helicopter on 8 December 2004
- Board of inquiries in The National Archives
- Board of Inquiry into the loss of Hercules XV179 (Iraq 30 Jan 05)
- Board of inquiry into the circumstances leading up to the deaths of six Royal Military Policemen
Military Aircraft Accident Summary (MAAS)
Following the completion of a full RAF Board of Inquiry into the causes of a serious military aircraft accident, the Directorate of Air Staff prepares a Military Aircraft Accident Summary (MAAS), which is presented to Parliament. It is written in non technical language and is designed to be read and understood by the non specialist. A MAAS is only ever published after the full investigation process has been completed.
It should be noted that given the passage of time, it has not been possible to locate documents for all RAF aircraft accidents. However, all those RAF MAAS held centrally (over 300) since they were first introduced in 1979 are now available on the UK Government Web Archive. All future MAAS will be included following presentation to Parliament.
Non-Statutory Inquiry reports
Published 11 October 2013
Last updated 10 February 2020 + show all updates
Last updated 10 February 2020 + show all updates
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Added the Update on the Service Inquiry into the deaths on 14 February 2013 in the Cairngorms National Park.
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Added Service Inquiry into the death of a soldier from a gunshot wound at Camp Taji, Iraq on 2 January 2017.
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Added Service Inquiry into the death of a soldier in a Road Traffic Accident at Al Asad Air Base, Iraq on 31st January 2018.
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Added the Service Inquiry into the accident involving HAWK T Mk1A XX204 on 20 March 2018.
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Added the Service Inquiry into the accident involving a Hercules C-130J Mk4 (ZH873) Heaving Land Incident on 25 August 2017.
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Added the following Service Inquiry report into the Loss of Watchkeeper (WK043) Unmanned Air Vehicle over Cardigan Bay in West Wales on 24 March 2017 and Service Inquiry report into the Loss of Watchkeeper (WK042) Unmanned Air Vehicle over Cardigan Bay in West Wales on 3 February 2017.
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Change of title to better describe the content on the page and added the latest NSI report.
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Added the Service Inquiry into the accident involving a Griffin MK1 ZJ241 at Yr Aran, Snowdonia, Wales page.
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Added The Service Inquiry report into the death of a soldier participating in a Night Live Firing Sniper Cadre at RAF Tain Range Field Firing Area on 1 November 2016.
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Added Service Inquiry report into the Challenger 2 incident at Castlemartin Ranges, Pembrokeshire on 14 June 2017.
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Added a link to the Service Inquiry into the death of a soldier participating in live fire tactical training at Heely Dodd Range, Otterburn on 22 August 2016.
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Added a link to the service inquiry report into the death of a soldier during an annual fitness test at Brecon on 19 July 2016.
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Added Service Inquiry into the aircraft accident involving YAK52 G-YAKB on 8 July 2016
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Added Service Inquiry report into the deaths of 3 soldiers in the Brecon Beacons, Wales, in July 2013
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Added Service Inquiry into the death of a soldier whilst parachuting at Bad Lippspringe, Germany, on 29 September 2015.
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Added Service Inquiry into the death of a civilian climber during Rescue 137 on 25 February 2013
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Added Puma XW229 and Watchkeeper 006 Service Inquiries
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Added Service Inquiry: accident involving the Falcons display team on 22 June 2014
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Added: Service Inquiry into the Watchkeeper (WK031) Unmanned Air Vehicle (UAV) accident at West Wales Airport on 16 October 2014
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Added Service Inquiry into death of a Royal Marine during an endurance march on Dartmoor Training Area on 28 May 2015.
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Added Board of Inquiry report for Pte James.
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Added link to Military aircraft accident summaries in the National Archives.
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Add new Service Inquiry internal review for Op Telemeter.
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Added Interim report from the Service Inquiry investigating the incident involving Gazelle XZ936 on 2 June 2014.
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Added Service Inquiry: accident involving Lynx Mk 9 ZF540 on 26 April 2014
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Added Service Inquiry: accident involving Tornado ZD743 and Tornado ZD812 over Moray Firth
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Added Service Inquiry: accident involving Sea King ZE428 at RNAS Yeovilton to the index.
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Added Service Inquiry: incident involving Voyager ZZ333 on 9 February 2014.
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Added 'Service Inquiry report into the accident involving Tucano ZF349' and 'Service Inquiry into the accident involving Hawk TMk1 XX177'.
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First published.