Successful shutdowns, turnarounds and outages (STOs) are the happy result of millions of correct decisions that begin months before the actual event. Success doesn’t come easily, or often. A recent survey revealed that 74 percent of all STOs fail to stay within 10 percent of the allotted schedule and budget. From deciding what to put on the work list, to scheduling the work, to coordinating the many activities that will take place within a limited amount of scheduled downtime, STOs require detailed planning covering every aspect of the plant.