Improve Turnaround, Shutdown, and Outage Duration: After Action Review

The practice of After Action Review, AAR, comes from the military, as in the US Army’s TC25-20 “A Leader’s Guide to After-Action Reviews” 9/93.  The approach is a classic example of Plan/Do/Check/Act and after an activity, while events are still fresh we ask five questions as follows:

  1. What was the plan?
  2. What actually happened?
  3. What went well?  So we can be sure to do it again.
  4. What went wrong?  So we can figure out how to do better.
  5. What are we going to do now?


  1. MarkRHamel says:

    Hi Larry,

    Sounds like AAR = hansei while wearing camo. Thanks for sharing.