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Aviation Safety & Airworthiness ⏱ 8 min read • Published October 27, 2026

Human Factors in Line Maintenance: Countering the Dirty Dozen

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By The Aviation Mind Safety Board
Senior Technical Contributor & Faculty
Human Factors in Line Maintenance: Countering the Dirty Dozen
Examining fatigue, pressure, complacency, and lack of assertiveness in hangar operations, and how procedural adherence protects flight safety.

Aviation safety statistics repeatedly show that over 80% of maintenance-related occurrences stem from human performance limitations. This article delves into Gordon Dupont’s original 12 human error causes and provides actionable checklists for maintenance engineers.

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