An oxygen emergency supply device for an aircraft includes an oxygen pressure vessel, which is in fluid connection with at least one oxygen mask. The kit is comprised of O-rings, a test plug that is expanded within the pump inlet pipe and cover. A manifold delivers a pressurized fluid to the chamber. Hybrid maize seed, plant or plant part produced by crossing the variety PH1T8W or a locus conversion of PH1T8W with another maize variety.