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Clockwork Research

Fatigue safety cases

A safety case is a structured argument, supported by evidence, intended to justify that a system is acceptably safe for a specific application in a specific operating environment (UK Defence Standard 00-56).

Clockwork Research has undertaken fatigue safety cases for aviation operators including easyJet, Qatar Airways, Air France and the Swiss Air Ambulance.

Operators undertake fatigue safety cases for different reasons, including:

  • as part of the FRMS, to explore in depth an aspect of the operation
  • to demonstrate to the regulator that an existing system of work is safe
  • to seek a derogation for work outside of flight and duty time regulations.

Clockwork Research is experienced in designing complex safety cases. Different types of data are collected but typically we utilise activity monitors to evaluate sleep and wake times, sleep and activity logs, psychomotor vigilance tests (PVT) and interviews.  We can provide all of the data collection equipment, undertake the statistical analysis and deliver a detailed report to an operator, for review by the regulator where applicable.

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Titan Airways engaged with Clockwork to assist in the development of training to meet both the regulatory needs of EASA-FTL and the unique fatigue management challenges that we face in an ad-hoc operating environment. Clockwork’s approach to the task was methodical and also sympathetic to the diverse operation types we have. The communication from the Clockwork team was excellent throughout the project including ongoing support after release. The final training product truly combined the theoretical and practical aspects of fatigue management with the Titan operating environment and ethos.open quote

Graham Baguley

Operations Director

Titan Airways

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Clockwork’s insights and experience enabled us to improve our data collection rates and their analytical skills offered invaluable insights into operational issues. It is fair to say that Clockwork has caused us to completely rethink our LOSA process, turning it into a true added-value proposition.open quote

Norman MacLeod

Human Factors Manager

Cathay Pacific Airlines

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Luxair has built a strong link to Clockwork over the past years. Not only did they help us to develop successful fatigue surveys with our cabin and cockpit crews but they also played a major role in the development of our fatigue reporting, our FRMS training and the analysis of our scheduling practices. Clockwork's staff were always open to our ideas/thoughts and with their professionalism and dedication helped us achieve our goal of mitigating fatigue related risks through our SMS.open quote

Pascal Kremer

Safety Manager

Luxair