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Clockwork Research

Survey of the Use of Controlled Rest on the Flight Deck

April 5th-8th, Montreal, Canada

This week the Clockwork team is attending the International Civil Aviation Organisation (ICAO) Symposium on Fatigue Management Approaches in Montreal. The Symposium is expected to attract over 400 representatives from airlines, regulatory authorities and others involved in the aviation industry from around the world. With the support of ICAO, Clockwork has created a survey on the use of controlled rest on the flight deck – attendees at the Symposium will be invited to participate in the survey to record their experience and views of the practice. 

What are the objectives of the survey?

This is the first international, independent survey of the operational practice of controlled rest on the flight deck. The objectives of the survey are to identify where controlled rest is practiced across the world, how different controlled rest procedures are structured and to improve understanding of the advantages and disadvantages of controlled rest.

What is controlled rest?

Controlled rest occurs when a pilot, who is part of a two-pilot operating crew, is temporarily relieved of operational duties and follows a company ‘controlled rest procedure’ for taking a period of rest and sleep (nap) in-seat on the flight deck. Controlled rest is not taken in the cabin or bunk and is not used to defer or to extend flight and duty time.

Who should complete the survey?

The survey is open to all companies with a crew of two or more pilots, irrespective of your level of experience of controlled rest. We are keen to hear the views of those who do not have controlled rest procedures in place at their operation, as well as those that do.


A maximum of three people should complete the survey from each company. These individuals should ideally include:

  • One representative from the safety department, or management, with a good understanding of the company’s approach to controlled rest on the flight deck
  • One line pilot who is a union representative
  • One line pilot, who may or may not have other roles


How long will the survey be open and how long does it take to complete?

The survey will be open for the duration of the ICAO and FRMS Forum meetings, from the 5th – 8th of April. It should take approximately 10 minutes to complete.


Will my survey responses be confidential?

Yes, when you submit your completed survey it will be returned to Clockwork Research and no one else will see your answers. Individual surveys will only be analysed by Clockwork, and all data will be de-identified/anonymised so that no individual or company can be identified.


How do I access the survey?

You can access the survey at https://www.research.net/r/controlled_rest

or by clicking the logo on the ICAO Symposium on Fatigue Management Approaches website: http://www.icao.int/Meetings/fmas

Who is conducting the survey and where do I find further information?

The survey is being conducted by Clockwork Research, an independent organization specializing in fatigue risk management. Please come and talk to us at the survey stand in the tea and coffee area, or you can contact Dr Alexandra Holmes, Research Director alex.holmes@clockworkresearch.com


How will the survey results be released?

The results will be available to everyone on the Clockwork Research (www.clockworkresearch.com) and ICAO websites (http://www.icao.int/Meetings/fmas).