At ~ 11:14 AM, Westmoreland 911 dispatched Station 20 (Murrysville VFC) for an Automatic Fire Alarm (AFA) at Redstone Highlands on Cline Hollow Road. Station 20 responded with 4 firefighters (including Assistant Chief 20) going to the station to crew Truck 20. Westmoreland 911 also dispatched the following additional stations to support Station 20: Station 610 (Murrysville Medic One), Station 22 (Export VFC), Station 64 (White Valley VFC), Station 78 (Sardis VFC), and Station 87 (Harrison City VFC). Director 610 was first on scene, and observed no fire or smoke coming from the structure. Upon investigation it was found that the AFA System had a false activation, and the facility staff reset the system. Assistant Chief 20 returned all responding unit including Truck 20 to service and station.