Abstract: A system for a gas turbine engine includes an igniter event conductor. The igniter event conductor has a first portion adjacent an igniter of the engine and in a combustion chamber of the engine and a second portion apart from the igniter and apart from the combustion chamber. The conductor is adapted to conduct an aspect of an igniter event at the igniter from the first portion to the second portion. A sensor is coupled to the second portion of the conductor to sense the aspect of the igniter event.

Abstract: A system for a gas turbine engine includes an igniter event conductor. The igniter event conductor has a first portion adjacent an igniter of the engine and in a combustion chamber of the engine and a second portion apart from the igniter and apart from the combustion chamber. The conductor is adapted to conduct an aspect of an igniter event at the igniter from the first portion to the second portion. A sensor is coupled to the second portion of the conductor to sense the aspect of the igniter event.

Abstract: A block valve includes a valve body having an interior chamber between an inlet port and an outlet port, with the valve body including a vent port positioned in the valve body. The block valve further includes a valve closure element located within the chamber, with the valve closure element having a fluid passage therethrough. The valve closure element is movable relative to the valve body between a first position, where the fluid passage is at least partially alignable with the inlet port and the outlet port, and a second position, where a sealing surface of the valve closure element seals the inlet port and the outlet port from the chamber. The valve closure element includes a vent channel positioned in fluid communication with the vent port and the fluid passage of the valve closure element.