Fire Alarm Activation at Construction Site on Apollo Flette, Sunnyvale

Summary: Sunnyvale Fire units, including Engine 46 and Truck 42, responded to a reported fire alarm at a new construction tunnel complex located at or near Apollo Flette in Sunnyvale, Santa Clara County, California. Upon arrival, crews found that the alarm was triggered by workers performing maintenance on the fire alarm panel system, with construction dust identified as the likely cause. After investigation, no fire or emergency was found, and all units were cleared and made available.