---
title: "Four Pillars of Safety: Outcomes vs Interventions in Aviation SMS"
description: Learn the relationship between promotional values, interventions, and outcomes in four pillars of safety in modern aviation SMS implementations.
image: https://aviationsafetyblog.asms-pro.com/hubfs/images/Blog_Images/Four-Pillars-OF-Safety-outcomes-VS-Interventions.png
---

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# Enhancing Aviation Safety: Expert Insights, Tips, and Updates from SMS-Pro

# Four Pillars of Safety: Outcomes vs Interventions in Aviation SMS

Posted by [Stu Martin](https://aviationsafetyblog.asms-pro.com/blog/author/stu-martin) on Jun 3, 2021 10:00:00 AM ![](https://aviationsafetyblog.asms-pro.com/hubfs/images/stu.jpg) Find me on:

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## Safety Culture Bridges Gap Between Promotion and Outcomes

![Four Pillars of Safety: Outcomes vs Interventions in Aviation SMS](https://aviationsafetyblog.asms-pro.com/hubfs/images/Blog_Images/Four-Pillars-OF-Safety-outcomes-VS-Interventions.png "Four Pillars of Safety: Outcomes vs Interventions in Aviation SMS")

A recent post about four pillars of safety in aviation discussed in part the end goal of aviation [safety management systems (SMS)](https://www.asms-pro.com/SMS/AviationSafetyManagementSystem.aspx). This aviation safety blog post drew a couple of interesting comments regarding the relationship between

- safety values,
- outcomes, and
- interventions.

The comment said, “I have witnessed poorly promoted safety values yet the same organization achieved good outcomes as individuals intervened to each emerging risk. Risk recognition and mitigation are paramount.”

#### **Related Aviation Risk Management Articles**

- [What Is Reactive Risk Management (Why It’s Essential for Aviation SMS)](https://aviationsafetyblog.asms-pro.com/blog/what-is-reactive-risk-management-why-its-essential-for-aviation-sms)
- [Is Root Cause Analysis Proactive or Reactive?](https://aviationsafetyblog.asms-pro.com/blog/is-root-cause-analysis-proactive-or-reactive)
- [From Reactive to Proactive Risk Management in Aviation SMS](https://aviationsafetyblog.asms-pro.com/blog/from-reactive-to-proactive-risk-management-in-aviation-sms-programs)

It’s easy when writing aviation safety articles about the relationship to get in the habit of assuming a direct connection between aviation safety promotion and the outcome of:

- safety,
- risk management, and/or
- hazard mitigation.

But as the comment pointed out, that’s not always the case. Poor safety promotion doesn’t necessarily entail poor safety outcomes, nor does great safety promotion necessarily entail great safety outcomes.

Really, safety promotion should be looked at as a means of influencing safety culture, rather than an outcome of safety. Outcomes of safety are really a couple of steps beyond the scope of safety promotion. Safety culture bridges the gap between the safety promotions and the outcomes of safety.

[![New Call-to-action](https://no-cache.hubspot.com/cta/default/543594/613cf5ad-c5e9-45f2-9985-5636eb47828d.png)](https://cta-redirect.hubspot.com/cta/redirect/543594/613cf5ad-c5e9-45f2-9985-5636eb47828d)

## In Terms of the Aviation Safety Four Pillars

The [Four Pillars of aviation safety](https://www.faa.gov/about/initiatives/sms/explained/components/) are:

- Safety Policy;
- Safety Risk Management;
- Safety Assurance; and
- Safety Promotion.

While they are the main components of every ICAO-compliant SMS implementation, the idea that each pillar is separate or independent of the other is a total misconception. The four pillars are a way of categorizing the framework behind the SMS' central tenets. Yet they all work together in cyclical relationships.

1. Safety policy defines top-level values, employee protections from management, and means for implementing SMS standards
2. Which supports the logic and methods for safety promotion and training to raise awareness and interest in safety culture
3. Which helps improve hazard identification and safety risk management abilities to manage safety
4. Which is the basis for safety assurance’s capacity to monitor and evaluate how effective a program is

While this is rather reductive, the process of policy-promotion-awareness-identification-action-revision is the cycle of an aviation SMS, rather than the safety culture itself, that leads to safety outcomes.

However, because the four pillars are not separate, static structures, but always influencing and interacting with each other, different pillars will play different roles in each organization and the maturity of the organization’s SMS. More on this later.

#### **Related Articles on Aviation SMS Four Pillars**

- [What Are the 4 Pillars of SMS?](https://aviationsafetyblog.asms-pro.com/blog/what-are-the-four-pillars-of-a-sms-program-with-free-resources)
- [Why Safety Promotion Component Is the Overlooked Pillar in Aviation SMS](https://aviationsafetyblog.asms-pro.com/blog/4-pillars-what-is-safety-promotion-component-the-overlooked-pillar)
- [4 Pillars | The Truth About SMS Continuous Improvement and KPIs](https://aviationsafetyblog.asms-pro.com/blog/4-pillars-the-truth-about-sms-continuous-improvement-and-kpis)

## Safety Culture Is a Matter of Intervention

![Aviation safety promotion helps improve the performance of aviation SMS programs at airlines and airports](https://aviationsafetyblog.asms-pro.com/hubfs/AviationSafetySolutions08.jpg "Aviation safety promotion helps improve the performance of aviation SMS programs at airlines and airports")

Intervention is the key idea in a [healthy safety culture](http://www.skybrary.aero/index.php/Safety_Culture). Intervention is simply the process of identifying hazards and/or risks and **intervening** – such as by reporting it as a safety issue – before the risk or hazard becomes a problem.

All safety outcomes are a product of either intervention or non-intervention. Intervention, of course, depends on the ability to recognize hazards and risks in the first place. But how does an employee get there – to the point where he/she has the ability to identify hazards and be motivated to report the identified hazard?

- Experience (which is a type of training in and of itself)
- Training
- Existing safety culture
- Promotion

Any single factor or combination of such things is with the idea of exposing and making visible non-safe situations, practices, and so on. Such is the basis for being able to intervene. Whether or not employees do or do not intervene is an entirely different matter, but one thing remains clear: Employee intervention is the means of a safety culture.

Of course, to be clear, having quality outlets for intervention such as a safety reporting system, trusting relationships with management, and so on, is part of the means of safety culture because it makes intervening easier.

## Reasons for Good Safety Culture Without Robust Promotion

As said, intervention is what directly influences outcomes. Plain and simple. But also as discussed, which types of management practices – i.e. promotion, training, etc. – will carry different levels of importance at different stages of SMS implementation.

To go back to the original comment that repeated, timely intervention can happen with poorly promoted safety values – there are probably several reasons for this.

For example, an SMS implementation that is mature and experienced will have less need for safety promotion because safety promotion philosophies have already become a natural part of employees’ safety behavior – they have a behavior of intervention, and thus there is not a pressing need for robustly promoted safety values. They’re already present.

It seems natural that safety promotion becomes less pressing as an SMS implementation matures. That is, as the values of SMS are transferred from promotion to actual practice.

Safety practices that are aligned with a healthy safety culture are a promotion in and of themselves.

I would also say though, that every organization has to go through the process of transferring safety promotion to actual safety practices. A culture of intervention needs to start somewhere – it cannot simply just “happen” – and initially, it usually starts with safety promotion activities to develop healthy safety cultures.

#### **Related Aviation Safety Culture Articles**

- [How to Build Safety Culture in Aviation SMS](https://aviationsafetyblog.asms-pro.com/blog/how-to-build-safety-culture-in-aviation-sms)
- [5 Ways to Constantly Improve Safety Culture](https://aviationsafetyblog.asms-pro.com/blog/5-ways-to-constantly-improve-safety-culture)
- [Indicators of Good Hazard Reporting Culture](https://aviationsafetyblog.asms-pro.com/blog/indicators-of-good-hazard-reporting-culture)

## Final Thought on Safety Sustainability

There is one concern with poorly promoted safety values, even in well-developed aviation SMS implementations, and that is sustainability. The aviation industry's environment constantly changes. Having a good safety culture today doesn't guarantee the safety culture will last. Every SMS experiences various and repeated environmental change scenarios that work against the long-term safety culture sustainability, including:

- High employee turnover
- Management changes
- New routes or regions exposing employees to different cultures
- New aircraft types
- New equipment or procedures
- Safety team/manager changes

Many other things will change the dynamics of a safety culture. Ideally, with such changes, the same culture would remain, and any new employees would simply be assimilated into the already healthy SMS. But are rarely things ideal.

Even in a mature aviation SMS, promoting safety values every so often is simply a way of ensuring sustainability.

[![Download all aviation safety culture resources - checklists, quizzes, templates, and more](https://no-cache.hubspot.com/cta/default/543594/548bb8e3-01d7-4bf4-8eee-6edf600e6cd9.png)](https://cta-redirect.hubspot.com/cta/redirect/543594/548bb8e3-01d7-4bf4-8eee-6edf600e6cd9)

Last updated in March 2026.

 Topics: [4-Safety Promotion](https://aviationsafetyblog.asms-pro.com/blog/topic/4-safety-promotion)

Site content provided by Northwest Data Solutions is meant for informational purposes only. Opinions presented here are not provided by any civil aviation authority or standards body.

 

 

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