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Chapter 01 of 23 · SMS · Occurrences

Occurrences, hazards, SPIs,one operational picture.

A safety management system that connects every occurrence to the hazards, SPIs, barriers and corrective actions that surround it. Built around how a Safety Manager already thinks. Bow-tie hazards, barriers you can audit, SPIs that fire before drift becomes a trend. Aligned to ICAO, EASA, FAA and your national authority. Just Culture enforced by the workflow.

OCC-2026-0184NORTHGALE AIR · SYNTHETIC OPERATION
The report lands
This week at Northgale: a tug contacts a fuselage panel during pushback, stand B14, Ramp 12. No injuries, aircraft withdrawn for inspection. The report enters once, structured, and every value keeps its source.
In the operation
SMSSafety Management
5capabilities
4record types
4linked modules
Why it holds

Built around how a Safety Manager already thinks.

Bow-tie hazards. Barriers you can audit. SPIs that fire before drift becomes a trend. Every occurrence is structured against your taxonomy, risk matrix cell, severity, barrier, and the same answer is on file three years later.

What it does

The capabilities, on one record.

Occurrence reporting

Voluntary, mandatory, confidential. Aligned to ICAO, EASA, FAA and your national authority, Just Culture workflow built in.

Hazard register

Every hazard is a bow-tie, threats, top event, consequences, with barriers between. Each barrier carries a status, effective, weak, failed, that updates when audited.

SPI monitoring

Statistical Process Control with Western Electric rules. Threshold breaches fire alerts before the drift becomes a trend.

Investigations

5-Why, Reason, and HFACS methods with structured findings. Every contributory factor links back to a barrier you can act on.

Emergency response

ERP activation with role-based checklists, stakeholder trees and automatic regulator notification drafts.

The records it produces

Real records, one reference each.

Every record carries a stable reference and a source on every field. Nothing is silently overwritten, and the trail is the record.

Classification is consistent, same occurrence, same answer at audit

Every contributory factor links back to a barrier you can act on

Just Culture policy enforced by the workflow, not by trust

AI outputs are reviewable, traceable and replayable

OCC
Occurrences
Classified against ICAO occurrence categories.
HAZ
Hazards
Linked to SPIs and barriers.
SPI
SPIs
Statistical Process Control monitored.
INV
Investigations
5-Why, Reason, HFACS.
The gate

Nothing enters twice.

One structured intake, three honest sources on every field: reporter, system, AI with confidence. A record cannot be filed vague and fixed later.

◉ CHAPTER 01 / 23NORTHGALE AIR · SYNTHETIC OPERATION
Next chapter
02 · Hazard Register

The occurrence is filed, classified and linked. The next chapter asks what the old stack never could: which barrier let this through?