Collection

Service Inquiry (SI)

Published Ministry of Defence Service Inquiries (SIs), Board of Inquiries (BOIs) and Military Aircraft Accident Summaries (MAAS).

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 Governemnt Web Archive have been provided below were reports were previously published on the Ministry of Defence’s old website

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.

Service Inquiries (SI)

For guidance about Service Inquiries please see the ‘Guide to Service Inquiries (JSP 832)’ available in the UK Government Web Archive.

  1. Service Inquiry: incident involving Voyager ZZ333 on 9 February 2014

    • 19 March 2014
    • Corporate report
  2. Service Inquiry: accident involving Hawk TMk1 XX177 at RAF Scampton

    • 6 February 2014
    • Corporate report
  3. Service Inquiry: accident involving Tucano ZF349 at RAF Linton-on-Ouse

    • 20 March 2014
    • Corporate report
  4. Service Inquiry investigating the accident involving Chinook ZA708 on 10 Aug 10

    • 6 June 2013
    • Corporate report
  5. Service Inquiry into the aviation fuel contamination at Mount Pleasant Complex during the period 25 Jun to 05 Aug 11

    • 27 February 2013
    • Corporate report
  6. Service Inquiry report into the incident involving Lynx XZ210 on 1 Dec 11

    • 8 February 2013
    • Corporate report
  7. Service Inquiry report into the occurrence involving Squirrel HT1 ZJ276 on 20 April 2012

    • 6 February 2013
    • Corporate report
  8. Service Inquiry report into the occurrence involving Chinook ZA671 on 07 April 2012

    • 6 February 2013
    • Corporate report
  9. Service Inquiry: shooting incident onboard HMS Astute, Southhampton

    • 15 January 2013
    • Corporate report
  10. Service inquiry: accident involving Red Arrows Hawk T Mk1 XX179 near Bournemouth

    • 18 December 2012
    • Corporate report
  11. HMS Antrim Op Corporate report of proceedings

    • 13 November 2012
    • Corporate report
  12. HMS Conqueror Op: corporate report of proceedings

    • 1 July 2012
    • Corporate report
  13. Service Inquiry investigating the accident involving Unmanned Air System (UAS) Hermes 450, ZK515 on 2 October 2011

    • 30 March 2012
    • Corporate report
  14. Service Inquiry: low flying incident Tornado ZA557, Peebles

    • 5 January 2012
    • Corporate report
  15. Service Inquiry: incident involving Chinook ZH898, oxfordshire

    • 15 December 2011
    • Corporate report
  16. Service inquiry investigating the accident to Tornado GR4 ZG792 on 27 Jan 11

    • 28 July 2011
    • Corporate report
  17. Service Inquiry report into accident involving Puma XW211 on 5 Jul 2011

    • 1 July 2011
    • Corporate report
  18. Service Inquiry: grounding of HMS Astute, Isle of Skye

    • 1 January 2011
    • Corporate report
  19. Service Inquiry: Puma ZA934 helicopter crash, Catterick

    • 1 September 2010
    • Corporate report
  20. Service Inquiry report into the Red Arrows accident in Crete on 23 March 2010

    • 1 July 2010
    • Corporate report
  21. Service Inquiry investigating the accident to Tutor G-BYXR

    • 1 May 2010
    • Corporate report
  22. Service Inquiry into the flooding of HMS Endurance

    • 18 March 2010
    • Corporate report
  23. Service Inquiry into the death of Capt JA Philippson

    • 17 September 2009
    • Corporate report
  24. Service Inquiry: investigating the accident to Tornado F3 ZE 982

    • 2 July 2009
    • Corporate report
  25. Service Inquiry investigating the accident to Tutor Aircraft G-BYUT and G-BYVN

    • 11 February 2009
    • Corporate report

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.

  1. Board of Inquiry: Squirrel ZJ 247 helicopter crash, Kingscott Valley

    • 11 October 2013
    • Corporate report
  2. Board of Inquiry report: death of English D P CEM1

    • 17 December 1997
    • Corporate report
  3. Board of Inquiry report investigating the accident to Tornado GR Mk4, ZA554

    • 14 October 2010
    • Corporate report
  4. Board of Inquiry report into the grounding of HMS Superb

    • 18 September 2008
    • Corporate report
  5. Board of Inquiry into the loss of HMS Portland's Lynx XZ724 helicopter 08 Dec 2004.

    • 21 January 2013
    • Independent report
  6. Board of inquiries in the National Archives

    • 21 January 2013
    • Guidance
  7. Board of Inquiry into the loss of Hercules XV179 (Iraq 30 Jan 05)

    • 13 January 2006
    • Corporate report
  8. Board of inquiry into the circumstances leading up to the deaths of six Royal Military Policemen

    • 18 February 2013
    • Corporate report

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.

  1. Military aircraft accident summary: aircraft accident to RAF Hercules XV179

    • 8 November 2006
    • Corporate report
  2. Military aircraft accident summary: aircraft accident to RAF Tornado GR MK4A ZG710

    • 23 March 2003
    • Corporate report

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