Start a DO-326A Airworthiness Security Consulting Practice

1. 1

   Learn the airworthiness security process cold

   DO-326A defines the airworthiness security process (with ED-202A as the EUROCAE equivalent, DO-356/ED-203A for security methods, and DO-355 for continuing airworthiness security). You must be able to walk an engineering team through security risk assessment, threat conditions, and the security architecture the standard expects. This depth is the entire barrier that keeps competitors out; do not sell until you genuinely have it.

2. 2

   Draw a clean line from penetration testing

   This is a compliance and certification practice, not an attack service. You do gap analysis, risk assessment, requirements and architecture guidance, and evidence packaging; a testing firm proves the system resists attack. Saying that boundary plainly is a selling point: clients understand exactly what they are buying, and you can even partner with a testing specialist rather than competing with one.

3. 3

   Package the gap analysis as your front door

   Most avionics teams cannot say where they stand against DO-326A. A fixed-scope gap assessment (current state versus the standard's expectations, with a prioritized roadmap to close the gaps) is a defined, easy first yes for a program manager staring at a certification deadline. It also scopes the larger follow-on work honestly.

4. 4

   Build the export-control discipline in from day one

   Avionics designs are frequently controlled under ITAR or the EAR, so you cannot share controlled technical data with foreign persons without authorization, and some programs need cleared or US-person staff. Bake a data-handling process into every engagement. Getting this wrong is a federal matter, and clients will vet you on it before they hand over a design.

5. 5

   Deliver certification-usable evidence, not opinions

   The product an airworthiness authority cares about is documented: security risk assessments, requirements traceability, architecture rationale, and the plan for continuing airworthiness security. Your reports must slot into the client's certification package. Consultants who deliver generic security opinions get ignored; the ones who produce evidence the authority accepts get rehired program after program.

6. 6

   Sell into the buyers with a certification deadline

   Your market is specific: avionics system suppliers, aircraft modification and supplemental-type-certificate shops, connected-cabin and IFEC vendors, and OEM certification teams. A looming certification milestone is the strongest demand signal in consulting. Speak at aviation systems and certification events, and let one anchor client in the sector make you the specialist peers call.

7. 7

   Convert projects into continuing-airworthiness retainers

   DO-355 continuing airworthiness security means the obligation does not end at certification: fielded systems must be monitored and maintained against evolving threats. Offer an ongoing service to keep the security case current as software and threats change. That recurring compliance work is what turns a string of certification projects into a durable practice.

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Best for: Aerospace certification and systems-safety professionals who can translate a security standard into engineering practice

Not for: Not for generalist security consultants without aircraft certification depth, and not for aerospace engineers who do not genuinely understand security; the value is the rare overlap. Not for anyone who wants fast, high-volume clients, because this is a small industry with long, trust-based buying cycles. And not for people unwilling to run tight export-control discipline, which is a non-negotiable part of handling avionics designs.