James Reason’s 12 Principles of Error Management James Reason, Professor Emeritus, University of Manchester, set out 12 systemic human factors centric principles of error management in his book Managing Maintenance Error: A Practical Guide (co-written with Alan Hobbs and published in 2003). These principles are valid beyond aviation maintenance and are well worth re-visiting: Human error is both universal … Continue reading James Reason’s 12 Principles of Error Management