Regulatory Article (RA) 5405: special instructions (technical) (SI(T))

RA covering the responsibilities for review of SI(T) for their effect on the aircraft and/or equipment safety assessment.


RA 5405: special instructions (technical)


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 1 December 2014
Last updated 31 May 2018 + show all updates
  1. Issue 4 has been published under NAA 18/13.
  2. Issue 3 has been published under NAA 16/20.
  3. First published.