Abstract: At 10:24 a.m. on January 17, 2017, Employee #1, a press brake operator, was operating a Cincinnati Inc. press brake, Serial Number 52916. The press, operated by a foot pedal, was equipped with Link Electric Black Max light curtains, Model LL-MAX-18-AS and Serial Number 8582. There were press setup configurations that required the use of a work support. The employer utilized light curtain blanks to allow the press to be operated with the support when necessary. The blanks were installed by the operator who screws them hand-tight onto a bracket that is on the light curtain, and then used a key, which was always kept in the light curtain box, to program the curtains to run with the blanks. A brake operator on a previous shift utilized a light curtain blank for an order, but the blanks were not removed after completion of the job and removal of the work piece support, or prior to Employee #1s shift. The blank loosened and fell vertically behind the bracket where it went unseen by Employee #1. With the section of the light curtain blanked, and with the work piece support removed, the employee was in the point of operation at the time the press was cycled. The press was not adequately guarded and allowed the employee to reach through to the point of operation where the key was readily available to bypass the guarding. Employee #1 sustained fractures and lacerations to three fingers on his left hand and was hospitalized for his injuries.