At ~5:32 AM, Westmorland 911 dispatched Station 20 (Murrysville VFC) to assist Station 78 (Sardis VFC) for a Residential Automatic Fire Alarm for a home on Barberry Court. Station 20 responded with Truck 20 (4 firefighters including Lieutenant 20). Engine 78 was first on scene, and upon investigation of the home, no fire was found. Command 78 cancelled Truck 20 enroute for return to station.