Implementing fatigue risk management system in an airline: A case study

This paper presents the implementation and benefits of a Fatigue Risk Management System (FRMS) within an airline, using Fly Air41 as a case study. Fatigue is acknowledged as a major threat to aviation safety, impairing human performance and raising the likelihood of operational mistakes. FRMS offers a data-driven, science-based approach to monitor, assess, and manage fatigue-related risks beyond the limitations of traditional Flight Time Limitations (FTL). Fly Air41 utilizes Leon software, integrated with the biomathematical model called Sleep, Activity, Fatigue, Task Effectiveness – Fatigue Avoidance Scheduling Tool (SAFTE-FAST), to evaluate fatigue and cognitive effectiveness for individual crew members. This integration enables predictive scheduling, compliance monitoring, and real-time fatigue alerts. The SAFTE-FAST tool analyzes sleep-wake patterns and circadian rhythms, highlights fatigue risk levels and recommends duty modifications when necessary. The system distinguishes between moderate and significant risk levels based on efficiency and sleep reservoir values. Implementation of FRMS improves crew alertness, reduces fatigue-related incidents, enhances operational safety, and supports regulatory compliance. It also aligns with commercial interests through cost reduction and brand protection. While not yet mandatory, FRMS is increasingly encouraged and may become a regulatory requirement. This study emphasizes the importance of management support, resource allocation, and system integration for successful FRMS implementation in airline operations.