Aircrew Survival Equipmentmen (PR) inspect, maintain and repair parachutes, seat pans, survival equipment, and flight and protective clothing and equipment; pack and rig parachutes; pack and equip liferafts;troubleshoot oxygen systems, repair and test oxygen regulators and liquid oxygen converters removed from aircraft; fit and maintain oxygen masks, flight clothing, anti exposure suits and anti G suits; operate and maintain carbon dioxide transfer and recharge equipment; operate and repair sewing machines; conduct special calendar/periodic inspections of survival equipment; supervise operation of parachute lofts and survival equipment work centers.