Three arena workers died in Fernie, B.C., due to the failure of aging equipment and poor operational and management decisions, according to a report by Technical Safety B.C.

In its investigation, TSBC — the independent body that oversees the installation and operation of arena ice-making machinery — found that a small ammonia leak in the equipment at the Fernie Memorial Arena curling rink escalated into “a rapid release of ammonia” into the mechanical room.

Lloyd Smith, Fernie’s director of leisure services, Wayne Hornquist, Fernie’s chief facility operator and Jason Podloski, a refrigeration technician with contractor CIMCO Refrigeration in Calgary, were trying