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Defence Aviation Safety Authority

Helicopter Structural Integrity (HSI)

What We Do

The HSI section within DAVENG fulfils two main (yet entirely separate) roles:
Conduct Authority functions, related to aircraft structures and aero-mechanical systems for ADF rotary-wing aircraft, to support DASA independently assure Initial and Continuing Airworthiness:

  • prescribe and interpret relevant elements of policy, regulation, design standards and requirements (and promotion thereof)
  • provide technology specialist safety assurance services internal to DASA (for products and processes, and intelligence and enforcement)
    • undertake inspection of compliance demonstration evidence
    • conduct Authority approvals, and where appropriate, issue airworthiness instruments
  • conduct independent safety assurance of reportable occurrences in response to occurrence reporting, including the issue of Airworthiness Directives if required

Assist regulated entities (CAMOs, SPOs/MTCHOs and contracted TLS providers), in the capacity as a Defence Centre of Expertise (CoE), to support Commanders ensure structurally-airworthy platforms:

  • provide HSI services
    • CoE assessments, specialist advice and/or DASR 21J design products (under the DAVENG MDOA AUS.DASA.21J.0010)
    • where appropriate and when agreed, undertake resource planning, task coordination and management of Aircraft Structural Integrity Programs (ASIPs) and/or major HSI projects on behalf of CASG
  • execute strategy and govern the Structural Integrity (SI) sovereign capability sponsored by DASA-DAVENG (between DASA-DAVENG, QinetiQ and Defence Science and Technology Group (DSTG))

HSI also provides a range of training to ADF members and external agencies. This includes unit level awareness training, presentations as part of larger courses and the in-depth Helicopter Structural Integrity Familiarisation Course (HSEF).

Helicopter Structural Integrity Familiarisation Course (HSEF)

The aim of the HSEF course is to provide participants with an understanding of helicopter structural design principles and the need for structural integrity management of ADF helicopters. The course will go into detail on Helicopter Structural Integrity Certification, Regulations and Management, Fatigue including Dynamic Component Fatigue Design and Environmental Degradation. Additionally the course aims to promote a greater awareness of relevant ADF airworthiness regulations, as well as roles and responsibilities.

The course is aimed at ADF, APS, DSTG and Defence Industry engineers involved in certification, design, repair or any other process pertaining to in-service (structural) management of ADF helicopters. Foreign Military members can also contact HSI to enquire about attendance on the HSEF course.  

The course runs for 3 days, typically at alternating locations between Townsville, Brisbane, Nowra and Melbourne. However, in order to mitigate the ongoing disruptions caused by COVID-19, HSEF is currently being delivered virtually through the Australian Defence Education Learning Environment (ADELE), with the intent to return to face-to-face learning when possible.

Attendance at the course is free for ADF personnel and Australian Public Service (APS) employees and at a cost for industry participants. However, while the course is being delivered online, there will be a reduced cost for industry members. Should travel be required, travel, meals and accommodation costs are the individual’s parent unit/organisations responsibility.

Further information on the course is available on this website under the ‘Education and Training’, via the link here.


If you have questions about this topic please contact the Officer In Charge HSI at

For DASR queries please submit a DASR Query Form (DQF) Form 110 PDF-175KB

Related Content

AC 005/2021

Structural and Propulsion System Integrity Programs in the DASP PDF-1229KB


ADRM Section 3 Chapter 12 – Aircraft Structural Integrity


Due to the Commercial-In-Confidence nature of the Aircraft Structural Integrity Plans, they are unable to be hosted on the DASA Internet website. Please contact the relevant HSI Manager or DASA HSI Desk officer if you require a copy of any of these ASIPs.