PWA111403 is a critical aviation component, adhering to AS9100D standards and FAA/EASA regulations, mainly used for the lubrication systems of commercial aircraft engines like the CFM56 series.

It functions as an oil - air separator cartridge, which is vital for separating air from lubricating oil in the engine’s accessory gearbox. This separation guarantees the oil remains pure for recirculation, avoiding oil - air mixing that would cause poor lubrication, increased component wear, or reduced engine efficiency.

Crafted from high - efficiency filter media with a metal frame, it can work stably at - 30°C to 220°C, boasting over 99% separation efficiency. Weighing about 0.8kg, it allows easy replacement during MRO, a key part in ensuring engine operational stability and longevity.