believes that "there is greater alertness" among staff members using updated scheduling practices following a previously hidden NASA study assessing chronic fatigue among air traffic controllers, the agency said in an Aug. 11 press release. NASA’s 270-page study was originally kept secret from the public until the Associated Press obtained a draft, after which the agency posted it online
. On recommendations from NASA, the FAA
in 2012 implemented a Fatigue Risk Management System, which changed controllers' work schedules in ways such as requiring nine hours of allotted rest when a night shift immediately precedes a day shift and allowing controllers to "self-declare fatigue and take time off" to recuperate.