3003 W CASINO RD BASE FILE 2023-10-24

Seatronics, Inc. Boeing 787 JV . Aircraft Early Warning Fire Detection Systems Job: 111137 Fire Alarm System Submittal Manual Section 1 Description: The Aircraft Final Assembly Early Warning Fire Detection System is designed to detect fires in the incipient stages of combustion within the aircraft interior during final assembly. This is accomplished through the use of the highly sensitive VESDA early warning air sampling type smoke detector. In this system, air samples are drawn back to the VESDA detector from an air sampling hose network placed onboard the aircraft. The detector optically examines air samples for smoke particles to determine the amount of light obscuration per foot of the air sample. A signal based on the obscuration level is sent from the detector to the VESDA controller. The VESDA controller processes this signal to provide a visual indication at the controller as well as output relays to provide auxiliary control functions. This early detection capability enhances the ability for emergency response personnel to take action before a major fire occurs, thus minimizing the potential for injury to person or property. The complete system is comprised of the following primary sub -systems: 1. Air sampling hose networks onboard each aircraft. 2. VESDA Detector Unit (VDU) panels located on tool platforms near the nose of each aircraft assembly position. 3. VESDA Control Panels (VCP) located on the main floor level along the transportation aisle (one for each aircraft position). 4. Main Fire Alarm Panels (MFAP) located at the south end of the aircraft assembly line. 5. Accessory control and indicating equipment, ie., Manual Stations, Save Switches, Horn/Strobes. 6. VESDA System Management graphical interface computer located at the Boeing Fire & Security Dispatch Office. The following is a description of the above listed system components and their function: Air SamDlina Network: The air sampling network is comprised of lengths of flexible 3/4" ID hose which run from the VESDA detector into and down the length of the aircraft. The air sampling hose inside the aircraft is suspended from the ceiling/overhead. The air sampling hose is comprised of individual segments that are approximately 20 feet long each. One fitting on each hose segment is drilled with an air sampling inlet hole. This hole serves as a smoke detection sampling point. The air samples are drawn back to the VESDA smoke detector for examination by the detector via a high efficiency aspirator located inside the VESDA detector unit. Seatronics, Inc. PO BOX 1138 Auburn, WA 98001 253-939-6060