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Work on—or anywhere near—a U.S. commercial aircraft, and chances are good you’ll encounter a random drug or alcohol test. These screenings are the foundation of a risk program aimed at keeping substance abuse from compromising air safety.
It doesn’t always work, which makes for a minor furor whenever allegedly inebriated crew members turn up.
On Saturday, police in Scotland arrested two United Continental Holdings Inc. pilots on suspicion of being drunk before their 9 a.m. flight to Newark Liberty International Airport. The incident came about a month after two pilots for Canadian airline Air Transat were detained on similar charges at the same Glasgow airport before their flight to Toronto.
These were not common occurrences. In the U.S., federal law requires pilots and air traffic controllers have a blood-alcohol level no higher than 0.04 percent, and not have consumed alcohol for at least eight hours before duty. (For automobile drivers, states have legal limits of 0.08 to as high as 0.20 percent.) Last year, only 10 pilots out of 12,480 random tests had alcohol violations above 0.04 percent, according to the Federal Aviation Administration, compared with 13 in 2014 and five in 2013.
The industry reported a total of 56,327 random alcohol screening tests for all classes of eligible employees, including pilots. Of those tested, 119 had a blood-alcohol content of 0.04 or higher.
The reality is that, for pilots, the chance of being caught is always present. Random drug and alcohol testing is a central tenet of the airline industry, with failure to appear for a test in a “reasonable” amount of time grounds for suspension or other disciplinary actions.
Random tests subjects also include mechanics, flight attendants, air traffic controllers, and other aviation employees whose roles affect safety. In the case of the two United pilots in Scotland, airline spokeswoman Erin Benson said Monday that the carrier will be conducting its own probe. “The safety of our customers and crew is our highest priority,” she said in an e-mail.
The FAA reviews test results annually to determine how much random drug and alcohol testing will be required for the following year. In 2014, the rate of positive drug tests (PDF) was 0.534 percent; for alcohol it was 0.106 percent. Currently, about one in four “safety-sensitive employees” are randomly tested for drugs annually, and about one in ten are tested for alcohol.
“What makes random testing so effective is the element of surprise,” according to an FAA video that details the program. “Employees never know if or when they will be selected.”
Beyond regulation, unions have also made substance abuse a priority. The largest pilots union, the Air Line Pilots Association, has programs for members “to recognize behavioral issues and provide help, support, and intervention before a problem enters the work place.”
One group, Birds of a Feather, has meetings for pilots modeled after Alcoholics Anonymous, with chapters in the U.S., Europe, Canada, and the Middle East. Another organization formed by the FAA, unions, and airlines, Human Intervention Motivation Study ( HIMS ), also serves as a substance-abuse treatment program tailored to airline pilots. The group was formed in the mid-1970s and aims to help manage recovery from dependency.
“The HIMS was founded upon the premise that pilot susceptibility to alcohol dependence was no different from members of other professional groups,” the organization says on its website. “However, periodic binges rather than daily drinking were typical pilot drinking patterns. The cockpit was usually the last place for symptoms to manifest themselves.”
©2016 Bloomberg L.P.
This article was written by Justin Bachman from Bloomberg and was legally licensed through the NewsCred publisher network.