A customer questionnaire arrives asking how you protect controlled design data, manage supplier access and recover production systems after an incident. For a manufacturer, an aerospace compliance example is useful because it turns those broad questions into practical work: identifying what could stop production, putting proportionate controls around it, and retaining evidence that those controls operate.
The aim is not to create a thick folder that nobody reads until audit week. It is to keep parts moving, protect intellectual property and give customers confidence that a cyber incident or failed PC will not quietly become a missed delivery.
What an aerospace compliance example looks like in practice
Consider a hypothetical precision engineering business in Hampshire. It manufactures machined components for aerospace supply chains, employs 45 people and operates a mixture of office systems, CAD workstations, an ERP system and CNC machines connected to ageing Windows PCs.
A customer asks the business to demonstrate its information security arrangements before awarding further work. The request refers to controlled technical information, secure access and business continuity. It may sit alongside quality requirements such as AS9100, contractual flow-down requirements, or a request for Cyber Essentials certification. The exact obligations depend on the customer contract and the business’s place in the supply chain.
The business should not answer with a generic statement that it has antivirus software. A credible response shows how its real operating environment is controlled. That includes the route from a design file to the shop floor, the people and suppliers who can access it, and the plan when a system fails.
Start with the production process, not the IT inventory
Most organisations begin by listing laptops, servers and software licences. That is necessary, but it misses the commercial question: what happens if this device, connection or application is unavailable or compromised?
In the example above, the team maps several dependencies. Engineers create or amend drawings in CAD. Approved files are stored in a controlled location and released to CAM or machine programming. ERP holds orders, material records and traceability information. Warehouse staff use shared terminals and Wi-Fi scanners. A machine supplier occasionally connects remotely to diagnose a fault.
This exercise often exposes risks that do not appear on an office-focused IT checklist. One unsupported PC may run a machine that has no practical replacement this quarter. A Wi-Fi dropout can prevent goods being booked out. A shared password on a shop-floor terminal makes it difficult to establish who accessed a controlled file. These are operational issues first and technical issues second.
Define what must be protected
For each process, identify the information and systems that matter. In an aerospace environment this commonly includes drawings, CAD models, programmes, inspection records, certificates, customer specifications, quotations and ERP data.
Then establish three things: who needs access, where that access is allowed from, and what evidence proves the information has been protected. The answer may differ between an engineer working on a new component and an operator viewing the latest approved instruction at a machine.
Access should be based on job need, not convenience. That normally means individual accounts for engineers and administrators, multi-factor authentication for Microsoft 365 and remote access, and clear approval for any supplier connection. Shared production devices may need a different approach, but they should still be traceable and restricted to the task they perform.
Controls that stand up to customer scrutiny
A sensible compliance programme joins everyday IT management to the risks above. It does not require every machine to have the same controls. In fact, forcing identical settings onto a legacy machine and a modern office laptop can create an outage of its own.
For standard business systems, the baseline is usually straightforward: supported operating systems, timely security updates, centrally managed endpoint protection, encrypted laptops, secure email settings, tested backups and controlled administrator privileges. These measures reduce common ransomware and account-compromise risks while providing evidence that systems are managed consistently.
Factory and warehouse systems need more care. A production computer may be tied to old software, a specialist interface or a machine supplier’s approved configuration. If it cannot be updated without affecting operation, record that fact and reduce its exposure. Typical measures include putting it on a separate network segment, limiting internet access, blocking unnecessary USB use, removing local administrator rights where feasible and allowing remote access only through an approved, logged method.
Network segregation is particularly valuable. It separates machinery-connected devices from office users, guest Wi-Fi and general internet traffic. It is not a magic wall, and it will not make unsupported software compliant by itself. It does, however, reduce the chance that a compromised email account can reach a vulnerable production device.
Remote supplier access deserves the same attention. A permanent remote-control tool with a shared password is difficult to justify. A stronger arrangement requires named accounts, multi-factor authentication, approval before a session, session logging where available and access that is disabled when not needed. If an urgent machine fault requires an exception, record who approved it and why. Production realities matter, but exceptions should not become the normal operating model.
Evidence is what turns good intentions into compliance
Customer reviews and audits are rarely satisfied by verbal assurances. They need evidence that the stated controls exist and are followed. The most useful evidence is generally produced by normal working practices, rather than assembled in a panic two days before a questionnaire is due.
For the hypothetical manufacturer, that evidence could include an asset register showing device owners and supported status; a record of approved software; user access reviews; multi-factor authentication settings; patching reports; backup success reports; restore-test records; network diagrams; supplier access approvals; and incident or change records.
There is a balance to strike. Documentation that is too vague offers little assurance, while documentation that promises controls the business cannot maintain creates an avoidable problem. Keep policies short, specific and aligned with how people actually work. If the procedure says leavers lose access on their final day, make sure HR, line managers and IT know who triggers that action.
The test that matters: can you recover without stopping work for days?
Backups are often mentioned in compliance responses, but a backup that cannot restore ERP data, CAD files or machine configurations is only a comforting theory. Test restoration of the systems that affect production and record the outcome.
A useful test does not always require a full shutdown. You might restore a recent ERP backup into an isolated environment, retrieve a controlled drawing from a previous date, or confirm that a replacement device can access required applications using documented settings. The right scope depends on the system and its acceptable downtime.
For critical systems, agree recovery priorities with operations. Restoring email before the ERP system may be sensible for one business and completely wrong for another. A production manager, finance lead and IT provider should be able to explain which systems come back first, who makes decisions during an incident and how staff will continue working while recovery is under way.
Where certification and customer requirements differ
Aerospace compliance is not one single IT certificate. A customer may ask for Cyber Essentials, an information security questionnaire, evidence supporting an AS9100 quality system, or its own supplier security requirements. Each has a different purpose and scope.
Cyber Essentials is a defined certification scheme with specific requirements. AS9100 is a quality management standard that can include information-related controls within broader operational processes. Customer contract terms may impose additional requirements. Good security practices can support all three, but they do not automatically meet every formal requirement.
This distinction matters when dealing with legacy equipment. Segregating an unsupported machine may be the sensible risk treatment while a replacement is planned. It may still fall short of a particular certification or customer rule. Be open about the limitation, document the risk, and agree the remediation plan rather than assuming a workaround closes the issue.
A practical next step for aerospace suppliers
Use this aerospace compliance example to run a focused review of one live production process, from controlled design data through to dispatch. Ask where the files are held, which systems are essential, who has access, how a supplier connects and whether recovery has been tested.
That conversation usually identifies the gap between a policy on paper and the systems people rely on at 6am when a machine will not communicate. If you manufacture in Hampshire, Surrey or West Sussex, Syn-Star can help assess those dependencies and build an IT plan that supports customer requirements without putting production at risk.
