Abstract: On November 17, 1989, Employee #1 had been instructed to install a drywall on the first-floor lobby using an 8-ft wooden stepladder with seven steps. The ladder was new and had been borrowed from another contractor. In five-minute intervals, two other employees witnessed Employee #1 working on the ladder on the second or third step from the floor. The coworkers had told Employee #1 that it was lunchtime. Employee #1 was undoing the screws from the ladder. The cord was tied around one of the ladder's sides. A few minutes later, Employee #1 fell with the ladder to the concrete lobby floor. An electrician who heard the fall ran up to Employee #1 and found him entangled in the ladder, lying on the concrete floor by the elevator shaft. Employee #1 sustained bruises to his back and legs and was transported to the hospital. No safety violations could be found as a cause of the accident.