All of us in the aviation safety business–and who isn’t involved in safety if they’re in aviation?–talk a lot these days about human factors. Human factors are involved in the overwhelming majority of aircraft incidents and accidents, by some estimates more than 80 percent, as aircraft and their components have become more reliable and less prone to causing catastrophic failures. The equipment has become less vulnerable to failures, but human errors and lapses have proved stubbornly difficult to anticipate and mitigate or eliminate. Much of the conversation these days involves the effect of fatigue, perhaps because a fatigue connection has been cited as a contributing factor in a number of tragic accidents across modes of transportation.
So, with all this concern about fatigue I was surprised to see that a recent National Air Traffic Controllers Association (Natca) media blitz concerning air traffic controller staffing shortages focused on their potential for creating more airline delays. This effort failed to mention any safety impacts, even though union officials claimed that the staffing shortages have led to six-day work weeks at some of the busiest facilities in the U.S. (Atlanta, Chicago and New York among them). Curiously, these union officials were quoted by numerous media sources as saying that in spite of the six-day weeks, the decrease in staffing was not causing a safety problem. Say what? Routine six-day work weeks and no concern for fatigue? That seems rather odd.