OVER-PRESSURE VENT SYSTEM FOR AN AIRCRAFT FUEL TANK

An over-pressure vent (OPV) system (150) is provided for a fuel tank (102) of an aircraft (800). The OPV system (150) includes an OPV valve (152) configured to be coupled in fluid communication with a supply line (104) of a nitrogen enriched air distribution system (NEADS) (100) such that the OPV valve (152) is configured to vent pressure from the supply line (104). The OPV valve (152) is configured to be coupled in fluid communication with the supply line (104) upstream from an outlet (136) of the supply line (104) from which the NEADS (100) delivers nitrogen enriched gas to the fuel tank (102). The OPV valve (152) is configured to sense a pressure within the supply line (104) upstream from the outlet (136) of the supply line (104).