Regulatory Article (RA) 5405: special instructions (technical)
RA covering the responsibilities for review of special instructions (technical) (SI(T)) for their effect on the aircraft and / or equipment safety assessment.
Documents
Details
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.
Related information:
Updates to this page
Published 1 December 2014
Last updated 3028 November 2023
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Update history
2025-11-28 09:35
Issue 11 has been published under NAA 25/50.
2023-11-30 11:56
Issue 10 has been published under NAA 23/60
2023-05-25 10:28
Issue 9 has been published under NAA 23/27
2022-07-19 09:38
Issue 8 of RA 5405 and Version 3 of RA 5405 Special Instructions (Technical) Template have been published under NAA 22/17.
Details
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.
Related information:
Updates to this page
Published 1 December 2014
Last updated 3028 November 2023
+ show2025
href="#full-history">+ show all updates
-
Update history
2025-11-28 09:35
Issue 11 has been published under NAA 25/50.
2023-11-30 11:56
Issue 10 has been published under NAA 23/60
2023-05-25 10:28
Issue 9 has been published under NAA 23/27
2022-07-19 09:38
Issue 8 of RA 5405 and Version 3 of RA 5405 Special Instructions (Technical) Template have been published under NAA 22/17.
Details
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.
Related information:
Updates to this page
Update history
2025-11-28 09:35
Issue 11 has been published under NAA 25/50.
2023-11-30 11:56
Issue 10 has been published under NAA 23/60
2023-05-25 10:28
Issue 9 has been published under NAA 23/27
2022-07-19 09:38
Issue 8 of RA 5405 and Version 3 of RA 5405 Special Instructions (Technical) Template have been published under NAA 22/17.