Abstract: At 6:45 p.m. on June 24, 2021, an employee and a coworker were repairing an APV Heat Exchanger (Model R5 QUAD-DRIVE 2005, Serial 20043003001040) after being called from the pump shop. The employee observed that ketchup had stopped draining and no water was flowing. While loosening the clamps on a pipe connected to the heat exchanger, hot water unexpectedly discharged from the pipe and struck the employee. The employee sustained third-degree burns on the left hip, second-degree burns on the chest and stomach, and first- to second-degree burns on the right arm and left shoulder. The employee was hospitalized for treatment.