Progress should be recorded and reported on every shift, by each supervisor. The progress should then be forwarded to the turnaround planner, who will use it to update/revise schedules and progress reports.

Progress should be recorded both as "percent complete" and "time remaining to complete". ATC Professional’s Lap Books provide a practical means of capturing the required progress information at the end of every shift.

Well-detailed activity definitions for all work orders are essential to render the degree of reporting error negligible. With good detail, any activity will probably account for less than a tenth of a percent of the total progress for the turnaround. Since at any time during the turnaround not more than a certain percentage of activities are in progress, even if several activities are reported incorrectly, they will not be mathematically significant in the overall picture.