Cockpit Control Panel
Monitors and controls the entire FPS. Automatically arms the suppression system to operate to the affected cargo compartment. Automatically discharges the second extinguisher bottle at the prescribed time (5 minutes for EASA) after system activation.
Detector Enclosure & Guard Bar Assembly
Stainless steel enclosure that houses the smoke detector. The enclosure is mounted in the ceiling of the cargo compartment.
Directs Halon to the affected cargo compartment.
Extinguisher Bottle & Suppression Rack Assembly
Provides one quick-discharge bottle to quickly saturate the affected cargo compartment with fire “knock-down” protection. The knock-down discharge is followed by a sustaining discharge of one or more bottles to sustain the required duration of protection. The EASA and Extended Duration FPS Kit configurations use a larger second extinguishing bottle.
Fault Panel Assembly
Monitors each smoke detector in the FPS system and identifies exact location of faulty detector to ensure quick maintenance.
Metering Device & Temperature Regulator
Regulates flow of the sustaining bottle’s discharge to maintain the required duration of protection. The sustaining discharge provided by the metering device replaces the agent that is lost due to normal leakage of the compartment under all foreseeable operating conditions.
Penetrating Distribution Nozzle
Directs Halon into the cargo load. One nozzle is installed in each detector enclosure.
Smoke Alarm & Fault Test Box
Used to test the alarm and fault indications on the cockpit control panel.
Dual Channel Smoke Detector
One unit contains both the A and B channel within one unit. One unit per enclosure. Each channel (A and B) has separate and autonomous power and ground, and inputs and outputs.
Used to test the squib firing circuits from the control panel to the extinguisher bottles and diverter valve.
Suppression Distribution Tubing Assemblies
Pre-formed extinguishing agent distribution tubes deliver the extinguisher agent from the extinguisher bottle assemblies to the system nozzles in the cargo compartment. This tubing simplifies and reduces the time of installation.
Sustaining Distribution Nozzle
Directs Halon to the top of the cargo compartment. Two sustaining distribution nozzles are mounted to the ceiling of each compartment.
System Electrical Harnesses & Pre-Wired Interface Tray Assembly
Used to connect the FPS components to the aircraft’s electrical system and interfaces (ie, Master Warning, Master Caution, Aural Warning, Cargo Smoke and Cargo Fire Annunciators, Lamp Test and Aural Warning Silence Switches, and System Circuit Breakers.).