Safety Systems (SMS) - SM4 Safety Articles & Resources

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flight department reviewing paperwork

How Much SMS Does Your Flight Department Need?

A safety management system scales to the operation using it. For a small flight department, the core functions can fit inside the routines the team already runs.

Posted on October 5, 2026
engineering team pilot drone at industrial site

When the Drone Does Something Unexpected: Preparing Pilots Beyond the Checklist

A pilot is finishing a routine aerial inspection when the drone stops responding as expected. The video feed freezes, a warning appears or the aircraft begins an automated maneuver the pilot did not anticipate.

Posted on October 5, 2026
aviation engineers checking airplane data on laptop

Before the Event: Finding Safety Signals in Everyday Flight Data

Most flights end exactly as planned. The passengers arrive, the aircraft returns to service and no safety report is filed. Yet from a safety perspective, the flight’s data may still have something important to say.

Posted on September 2, 2026
satellites orbiting Earth

Preparedness Is Key To Combat Growing Global Navigation Satellite System (GNSS) Interference

Over the past several decades, GNSS has evolved from a convenience to a critical component of modern aviation safety. Today’s aircraft rely on GNSS for aircraft positioning and navigation, instrument approaches, surveillance and traffic awareness, terrain awareness and runway overrun prevention.

Posted on August 3, 2026
maintenance tech working on plane in hangar

Safety Management Systems in Aviation Maintenance

There has been “much ado” about Safety Management Systems (SMSs) in aviation since their debut many years ago. A great deal of the attention has gone to SMS implementation in the Flight Operations arena, and it’s been a positive story.

Posted on June 25, 2026
ground crew preparing airplane before flight

The Modern “Water Cooler”: How Collective Intelligence Drives Aviation Safety

Who would have thought the humble water cooler would still be driving industry-wide progress? In aviation, progress has always been fueled by shared knowledge.

Posted on June 25, 2026
plane crashed into fence

How Compounding Risks Drive Runway Excursions

Runway excursions rarely result from a single factor. More often, they develop when several manageable risks combine into a situation that leaves little margin for error.

Posted on June 1, 2026
Normalization of Deviance

When Risk Becomes Routine: Normalization of Deviation in Your Operation

Let’s start with a simple question: What’s something in your operation that technically “works,” but doesn’t fully align with your standard operating procedures?

Posted on May 6, 2026
Private Jet Pilots in Cockpit

The Case for Better Standard Operating Procedures

In July 2008, a business jet operating under 14 CFR Part 135 touched down long on landing. In its analysis, the National Transportation Safety Board (NTSB) noted that, recognizing the deteriorating situation, the flight crew attempted a balked landing and initiated a go-around.

Posted on March 31, 2026