Should you build or buy Aviation Safety Management System (SMS)?

Aviation Safety Management System software runs an operator's hazard reporting, risk assessment, corrective action, and audit trail in one workflow tied to aviation safety regulations. Airlines, charter operators, and other certificated operators buy it to satisfy mandated SMS requirements and show regulators a documented safety process.

Buy a packaged SMS unless you already run a disciplined internal workflow platform; the FAA accepts homegrown systems, but the vendor's regulatory monitoring and audit trail are what most operators are actually paying for.

Build it, buy it, or bridge?

⚒ Build it
✓ Buy it
➔ Bridge
Cost shape
A spreadsheet-based SMS costs nothing beyond staff time, which the FAA explicitly allows for small operators.
Packaged SMS platforms typically run a modest monthly fee scaled to fleet size or user count.
Run a lean SMS on spreadsheets while small; move to a packaged platform as headcount grows.
Time to value
Setting up spreadsheet-based hazard tracking following AC 120-92D's own templates can take a single afternoon.
A packaged platform is live within days, with hazard forms and risk matrices already built in.
Start on spreadsheets immediately; migrate to a platform once volume outgrows manual tracking.
Differentiation captured
A homegrown system tuned to one operator's specific fleet and operations can be perfectly adequate.
SMS workflow carries no competitive value; every operator runs the same required process.
Vendor's regulatory-change monitoring is the value; the underlying workflow is the same either way.
AI feasibility today
AI coding tools make a homegrown SMS workflow easy to stand up; the FAA already accepts one.
Vendors are starting to add AI-assisted hazard categorization on top of an otherwise standard workflow.
Track hazards on your own AI-assisted spreadsheet workflow, and buy regulatory-change monitoring as a separate service.
Who it fits
Small operators with a single safety manager and the discipline to run FAA-sanctioned spreadsheet processes.
Operators that want off-the-shelf regulatory-change monitoring and don't already run a disciplined internal workflow tool.
Operators that want to start lean and are willing to migrate platforms as they scale up.

When building makes sense

Building your own SMS workflow is not just tolerated, the FAA writes its own guidance around it. Advisory Circular 120-92D states there is no one-size-fits-all method for complying with the requirements of Part 5, and a consulting guide built on that AC recommends small operators use simple forms or spreadsheets for hazard reporting and tracking instead of full-scale software systems. That's a regulator explicitly telling small operators that a spreadsheet-based hazard log, a simple risk matrix, and a quarterly safety review meeting can satisfy the requirement. Building makes the most sense for a single safety manager wearing multiple hats, where the discipline to run a consistent process matters more than the software running it. As headcount and hazard volume grow, the manual tracking that worked at ten reports a year starts to strain, and that's the point to reconsider a packaged tool.

When buying makes sense

Buying a packaged SMS platform earns its cost once an operator is large enough that manual tracking becomes its own risk. Centrik, Ideagen Aviation Safety, and VOCUS SMS package the hazard-reporting, risk-assessment, and audit-trail workflow that the FAA's own guidance says can be run on spreadsheets, so what you're paying for is convenience and regulatory-change monitoring rather than a capability spreadsheets structurally lack. That convenience is worth real money against the cost of a compliance gap discovered during an audit, especially once hazard volume outgrows what one person can track reliably in a shared file. Operators with a capable IT function and the discipline to maintain a spreadsheet-based process well can reasonably stay there longer than a vendor would like, but the packaged platform removes the ongoing burden of tracking regulatory changes yourself.

The desk read

Build-versus-buy analysis for Aviation Safety Management System (SMS) is being written. In the meantime, the framework that drives every B4 call is on the B4 Index page.

Representative vendors CentrikIdeagen Aviation Safety + 4 more, listed in the full index

Frequently asked

Does the FAA require operators to use dedicated SMS software?

No. FAA Advisory Circular 120-92D states there is no one-size-fits-all method for complying with Part 5's SMS requirements, and small operators are specifically guided toward simple forms or spreadsheets rather than full-scale software when their operation is small enough to manage that way.

When does a spreadsheet-based SMS stop being adequate?

Usually when hazard volume and headcount grow past what one safety manager can track reliably by hand, or when tracking regulatory changes across the sources you monitor becomes a job in itself. There's no fixed threshold; it's a judgment call about whether the manual process is still catching what it needs to.

What's the actual value a vendor SMS platform adds over spreadsheets?

Mainly convenience and regulatory-change monitoring: automatic alerts when a rule affecting your operation changes, structured audit trails, and a workflow that scales without redesigning your own tracking system. None of that is a capability spreadsheets structurally lack, which is why the FAA accepts either approach.

Can a single safety manager run an SMS without dedicated software?

Yes, and FAA guidance is written with exactly that operator in mind. A running hazard log, a simple risk matrix from AC 120-92D, and a short recurring safety review meeting satisfy the core requirements for a small, focused operation.

The B4 Index scores every software category on two axes, strategic differentiation and AI feasibility, to classify it Build, Buy, Bridge, or Beware. See the full methodology.