Text For Citation: 01 Item/Group: 002B Hazard:

29 CFR 1910.307(c)(2)(i): Equipment in hazardous (classified) location(s) was not approved for the ignitable or combustible properties of the specific gas, vapor, dust, or fiber that was or could be present: At the Wichita facility the employer did not verify that the engine room ventilation systems complied with recognized and generally accepted good engineering practices in that the ventilation calculations used for safety purposes to assure it performs at a rate specified in the design were not developed, and machinery engine room contains standard/regular electrical equipment. The current provided process safety information was not detail. It contains only half a page with a diagram to describe the engine room ventilation system. Employer did not provide the full detail ventilation system design for OSHA to evaluate to ensure the calculation, the design is correct and up to required codes. Therefore, the electrical equipment inside the engine room, normally designated as Class I, Division 2 of the National Electrical Code requiring explosion proof electrical equipment, are not exempt by the exhaust fan and continuously ventilation system defined in ASHRAE 15-2010, Section 8.12(h). Employees were exposed to catastrophic release of ammonia which results in asphyxiation, explosion and flash fire leading to death and injury to persons in and near the facility.