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Safety Management System


Safety Performance Indicators: Measuring What Matters in Aviation Safety
Safety Assurance monitors whether safety controls work as intended. Safety  Performance Indicators (SPIs) show how well  they work. SPIs turn complex operational data into measurable insight. They make safety performance visible, and that visibility is what allows organizations to make informed, timely decisions. Safety Performance Indicators — the pulse check of your safety system. What Are Safety Performance Indicators? Safety Performance Indicators are measurable metrics u
Margrét Hrefna Pétursdóttir
30 minutes ago3 min read


Safety Assurance: Monitoring the Health of Your Safety System
In aviation, hazard identification tells us what could go wrong. Safety  assurance tells us whether our defenses are working. Safety assurance is the third pillar of the Safety Management System (SMS). It verifies that the organization’s safety processes are functioning as intended, not just on paper, but in daily operations. When done well, it turns safety management from reactive problem-solving into continuous improvement. The Safety Assurance pillar — verifying that your 
Margrét Hrefna Pétursdóttir
2 days ago2 min read


Reactive Hazard Identification: Mandatory Occurrence Reporting
Doing What’s Required EU Regulation 376/2014 sets out what must be reported through the Mandatory Occurrence Reporting (MOR)  system. Most operators comply, and that’s a good thing. It’s the backbone of reactive hazard identification. When something significant happens, an aircraft system malfunction, a runway incursion, a loss of separation, the MOR process ensures it’s documented, analyzed, and shared across the system. That’s how we learn from what has already  happened. B
Margrét Hrefna Pétursdóttir
5 days ago2 min read


Safety Policy: More Than Just a Tick in the Box
Every operator has a Safety Policy. It is a requirement, after all. But in my experience at Glacier Aviation Consulting, when assisting...
Margrét Hrefna Pétursdóttir
Sep 222 min read


Part-145 SMS: On Paper vs. In Practice
In December 2024, the requirement for Safety Management Systems in Part-145 organisations  became mandatory. The intention is clear:...
Margrét Hrefna Pétursdóttir
Aug 272 min read


Myth Buster: Passing an Audit Means Your SMS Works
Myth: “If your SMS passed an audit, it must be working.” Fact: Passing an audit doesn’t always mean your Safety Management System (SMS)...
Margrét Hrefna Pétursdóttir
May 231 min read


Myth Buster: “SMS Is Just Paperwork
One of the most persistent myths in aviation is this: “Safety Management Systems (SMS) are just red tape—they don’t actually make flying...
Margrét Hrefna Pétursdóttir
May 171 min read
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