Action taken by an aircraft engineering organization to improve the quality and reliability of its technical software is described. Before and after comparisons are given to illustrate that the quality and reliability were improved to where engineers no longer considered them to be a major factor in task planning and the expenditure of programing time for "fire drills" during production use was reduced to a negligible amount. The action taken was administrative rather than technical. It was, however based upon general procedures for control and communication that can be adapted by other engineering organizations for the same purpose.