Repeated Aviation Incidents: When Small Failures Signal a Major Accident Is Coming

 In aviation, incidents rarely happen in isolation.

When events begin to repeat, even if they are not identical, it signals something far more serious:

A system under stress — and a risk that is quietly increasing.

This is not speculation.
It is grounded in decades of safety research and real-world accident analysis.

🧠 The Safety Theory Behind Repeated Events

Aviation safety has long recognized that major accidents are rarely sudden.

They are built over time.

📊 The Heinrich Pyramid

Developed by Herbert William Heinrich, it shows that:

• For every major accident
• There are dozens of minor incidents
• And hundreds of unsafe acts

👉 In other words:

The accident is just the visible tip of a much larger, hidden problem.

🧀 The Swiss Cheese Model

Introduced by James Reason

Accidents occur when:

• Latent failures
• Active errors
• And system defenses

align at the same time.

👉 Repeated incidents indicate:

Those layers of protection are already weakening.

⚠️ What Repetition Really Means

When you start seeing:

• Multiple incidents within a short period
• Different events in the same operational environment
• Recurring small deviations

This is not coincidence.

It is a pattern.

A pattern that suggests:

• Operational pressure
• Reduced safety margins
• Communication breakdowns
• System overload

✈️ From “Near Miss” to “Next Accident”

One of the most dangerous mistakes in aviation is treating incidents as isolated events.

Aviation doesn’t work that way.

It works through trends.

And trends reveal:

• Gradual degradation
• Normalization of deviance
• Increasing exposure to risk

🧠 Normalization of Deviance

A critical concept in accident prevention:

When small errors occur repeatedly:

• They stop being noticed
• They become accepted
• They turn into the “new normal”

👉 This is where the real danger begins.

🚨 The Warning for the Coming Months

When repeated operational events emerge within a short timeframe, the message is clear:

The system is no longer operating with the same safety margins.

And that demands:

• Increased vigilance from flight crews
• Stronger air traffic control discipline
• Immediate procedural review
• Reinforced communication standards

🎯 A Professional Perspective

From an operational standpoint, repeated incidents are not just warnings.

They are indicators.

Indicators that the system is drifting toward failure — a concept explored in modern safety science as:

“Drift into failure” (Sidney Dekker)

✍️ Conclusion

Aviation has taught us one fundamental truth:

Accidents don’t begin at impact.
They begin long before — with small, repeated signals that go unaddressed.

And when incidents start repeating:

An accident is no longer just a possibility.
It becomes a matter of time.

📚 REFERENCES

• Heinrich, H. W. (1931). Industrial Accident Prevention: A Scientific Approach.
• Reason, J. (1990). Human Error. Cambridge University Press.
• Reason, J. (1997). Managing the Risks of Organizational Accidents.
• Dekker, S. (2011). Drift into Failure: From Hunting Broken Components to Understanding Complex Systems.
• ICAO – Safety Management Manual (Doc 9859)
• FAA – Risk Management Handbook (FAA-H-8083-2)
• NTSB – Accident investigation reports and safety studies

📢 CALL TO ACTION

If you are part of aviation — pilot, controller, engineer, or enthusiast:

👉 Pay attention to patterns
👉 Share safety knowledge
👉 Never ignore small deviations

Because prevention starts long before the accident.

🧠 AUTHOR BIO 

Marcuss Silva Reis is an economist, commercial fixed-wing pilot, aviation expert witness, and professor of Aeronautical Sciences. With over 30 years of experience in aviation and technical optics, he is the founder of Instituto do Ar, where he publishes in-depth analyses on aviation safety, accident investigation, operational decision-making, and air transport economics. His work combines real cockpit experience with academic insight and investigative analysis, focusing on accident prevention and safety culture development.