Aircraft Fire Protection Systems for Engines and APU provide comprehensive Fire and overheat detection and extinguishing systems, offering advanced safety features beyond standard fire or smoke detection systems. Each engine and the APU are equipped with dual fire detection loops (A and B) that operate in parallel, complemented by a Fire Detection Unit (FDU). These fire detection loops incorporate three sensing elements for each engine, strategically located in the pylon nacelle, engine core, an

The fire sprinkler system is designed to effectively control or extinguish a fire. When activated, each sprinkler head operates independently. Here’s how the process typically works: 1. **Heat Detection**: Each sprinkler head is equipped with a heat-sensitive element, such as a glass bulb filled with a heat-responsive liquid or a fusible link. These elements are designed to respond at specific temperatures, usually indicative of a fire. 2. **Activation**: When the ambient temperature around the