Extraction Parachute Jettison Device (EPJD)

TM 10-1670-296-20&P 0002 00 0002 00-16 Extraction Parachute Jettison Device (EPJD). The EPJD couples the extraction line with the 3-point-link assembly. One device is required for each platform. In normal operation, the extraction parachute is deployed and the payload exits the aircraft. In the event the extraction parachute is deployed and the payload fails to exit the aircraft, the load master can activate the JETTISON SWITCH on the control box which fires the squibs in the system and releases the extraction parachute(s) from the payload(s). Y-Connector. The Y-connector contains a LAMP TEST switch, a blue indicator Light Emitting Diode (LED), a connector for the platform cable, and two connectors for the interconnecting cables. The LAMP TEST switch, when pressed, will illuminate the blue LEDs when the system is installed and powered ON. The LED, when lit, indicates that one or both circuits from the Y-connector to the squib are intact. The internal circuit contains capacitors for storing the energy required to fire the squibs and has solid-state switches that are actuated by the JETTISON SWITCH on the control box. The Y-connector is attached to the Y- connector mounting box; one set is used for each platform.