How PepsiCo South America Cut Accident Ratio 50% in 6 Months by Changing What Supervisors Tolerated

In PepsiCo South America, the accident ratio fell 50% in six months, but the useful lesson was not that people suddenly became perfect. The useful lesson was that supervisors stopped tolerating small deviations that used to pass as normal, and that change altered what the field expected from leadership.

This case is for plant managers, supervisors, and safety leaders who already have inspections, dashboards, and meetings, yet still see the same shortcuts reappear. Across 25+ years in multinational EHS and more than 250 cultural transformation projects, Andreza Araujo has seen that safe behavior changes when leaders stop rewarding convenience and start defending the standard in the moment it is challenged.

The result matters because it shows that behavior is not a poster problem. Behavior follows the boundary leaders set, and that boundary becomes visible in small acts, such as whether a supervisor pauses work, asks for a field check, or accepts a shortcut because the shift is busy. That is why this case sits naturally beside the 19-country safety culture scale-up case and Visible Felt Leadership Explained: 4 Signals That Prove Presence.

Initial scenario

The starting point was not a lack of concern. It was a familiar operating pattern in which many people agreed that safety mattered, while the routine still allowed small deviations to slide. A permit might be accepted too quickly, a handover might skip a weak signal, or a supervisor might choose speed over verification because the team was already behind.

That pattern matters because repeated tolerance becomes behavior. Workers do not only learn from written rules. They learn from what the supervisor stops, what the supervisor ignores, and what the supervisor praises when production pressure is high. As Andreza Araujo writes in Safety Culture: From Theory to Practice, culture is not a slogan. It is the sum of repeated decisions under pressure.

The company did not need another speech about zero. It needed a clearer answer to a harder question, which is what supervisors are allowed to let pass. When the organization tolerates weak behavior at the line, the behavior becomes normal long before it becomes an incident.

That is also where James Reason is useful. Latent failures do not appear only at the end of the event chain. They often start when the system teaches people that the shortcut is acceptable, especially if nobody with authority interrupts it early.

Decision

The key decision was to move the standard closer to the shift. Leadership did not treat safe behavior as a campaign topic or a monthly reminder. It made safe behavior part of the supervisor role, which meant that the person closest to the work had to decide what could proceed and what had to stop.

That shift sounds obvious, but many operations still separate responsibility from authority. EHS may define the rule, yet the supervisor is the one who sees the shortcut in real time. If the supervisor is not expected to intervene, the rule stays theoretical and the work stays unchanged.

Andreza Araujo's thesis in Make The Difference: Be a Leader in Health & Safety is practical here. Leadership is not an announcement. Leadership is the moment when someone with authority makes the work slower for the right reason, because a shortcut would otherwise set a new norm.

The second decision was to treat tolerance itself as a risk variable. Once leaders see tolerance as part of the control system, they stop asking only whether the workforce knows the rule. They start asking whether the supervisor, the planner, and the line manager have trained themselves to defend it when convenience argues back.

Execution

Execution depended on rhythm, not drama. The leadership team tightened the loop between observation, intervention, and follow-up so that a weak behavior could not drift into the next shift without comment. That is a quiet change, yet it alters the field quickly because people notice what gets corrected today and what gets ignored tomorrow.

The useful pattern was simple. Supervisors walked the work, checked the point where shortcuts usually appeared, and then acted on what they saw. If the permit was rushed, they paused it. If the handover was thin, they reopened the discussion. If the task design pushed workers toward a deviation, they escalated the condition instead of blaming the individual alone.

The behavior standard worked because it was visible. Workers could see that the same deviation no longer received the same pass. That visibility matters more than a slogan because the team adjusts to what leaders reward and tolerate, not to what leaders say in a meeting room.

This is where Andreza Araujo's book A Ilusão da Conformidade, glossed in English as The Illusion of Compliance, is especially relevant. A site can look orderly on paper while the work still runs on exceptions. The execution phase in this case reduced that gap by making the exception harder to hide.

It also changed how people used the supervisor. Instead of treating the supervisor as a messenger for production, the team began to treat the supervisor as the first owner of the standard. That change is important because a behavior norm only survives when the person closest to the work accepts that enforcing it is part of the job.

Measured result

The measured result was a 50% reduction in accident ratio in six months. That number is strong, but the deeper result was that the organization made unsafe tolerance less available. The case did not prove that every site can copy the same number on command. It proved that a tighter behavior boundary can change the trajectory of harm faster than a campaign can.

Before and after tells the story more clearly than the headline alone.

The result fits James Reason's latent failure view because the organization did not fix only the final act. It changed the conditions that made the act easy to repeat, especially the habit of letting small deviations pass until they became acceptable background noise.

It also fits Andreza Araujo's broader record across more than 30 countries and more than 250 cultural transformation projects. The strongest change rarely comes from a new label. It comes from supervisors, managers, and EHS teams acting in the same direction when the field shows a gap.

Generalizable lessons

The first lesson is that safe behavior is governed locally. Workers learn the real rule from the supervisor who sees the work in motion, not from the poster in the corridor. If the supervisor tolerates a deviation once, the team will test whether that tolerance is permanent.

The second lesson is that behavior follows certainty. When people know the standard will be defended, they adjust faster than when they think the rule is negotiable. That is why visible intervention matters more than periodic reminders.

The third lesson is that metrics improve after behavior changes, not before. Leaders often try to reverse the order, which is why dashboards can get cleaner while work remains fragile. This case shows that the ratio improved after the supervisor boundary became clearer.

The fourth lesson is that culture is not abstract when it is attached to specific decisions. Whether a supervisor pauses a permit, asks for a field check, or accepts a shortcut tells you more about the culture than a broad statement about values ever will.

What to apply in your operation

If you lead a plant, a region, or a contractor-heavy site, start with one question this week. What behavior do supervisors still tolerate because it looks small? Then name the exact point where that behavior enters the work, and make the supervisor the first owner of the response.

From there, check three things in the field. First, whether the standard is visible at the point of work. Second, whether the supervisor can stop the task without waiting for permission from a meeting. Third, whether follow-up proves that the deviation was removed instead of merely discussed.

That routine is simple, and it works because it attacks tolerance before it hardens into habit. A site that wants better safe behavior does not need more language. It needs fewer excuses for the same shortcut.

For teams that want to deepen the method, Safety Culture Diagnosis: 250 Companies shows how to read the gap between declared and operated safety, while Leadership Cadence: How 180 Days Cut Accidents explains why rhythm matters once the field starts to change.

Conclusion

This case proves that a 50% reduction in accident ratio can begin with something less visible than technology or budget. It can begin when supervisors stop tolerating the shortcuts that used to define normal work, because behavior changes when the field learns that the standard will be defended every day.

If your operation needs help turning tolerated deviation into visible leadership discipline, start at Andreza Araujo. The goal is not to sound strict. The goal is to make safe behavior the easier option in the shift that is happening right now.