Regulatory Article (RA) 1420: service inquiries; air accident and significant occurrence investigation

RA covering the convening of service inquiry to investigate accidents and occurrences producing recommendations to improve air safety.



The purpose of Regulatory Articles (RA) is to provide the framework of policy, rules, directives, standards, processes and the associated direction, advice and guidance, which governs military aviation activity and against which air safety is assessed. The regulator develops regulations in response to applicable UK law, MOD needs, legal changes and recommendations resulting from both assurance or investigation functions.

Published 10 November 2014
Last updated 30 November 2018 + show all updates
  1. Issue 5 has been published under NAA 18/41.
  2. Issue 4 has been published under NAA 15/13
  3. First published.