98V27508834000 is a specialized aerospace engine bleed air system performance testing GSE (Ground Support Equipment), compliant with AS9100D quality standards and FAA/EASA MRO regulations, designed for CFM56 series turbofan engines. It is used to test the pressure, flow rate and stability of the engine's bleed air system during on-ground maintenance, which is critical for ensuring the system can provide stable, pressure-regulated compressed air for aircraft systems such as cabin pressurization, anti-icing, and engine starting, avoiding system malfunctions caused by abnormal bleed air parameters.

Made from high-strength stainless steel and precision pressure-flow sensing components, it operates stably in -20°C to 120°C ground environments. Weighing 1.3kg with quick-connect air interfaces, it allows for fast and accurate testing during bleed air system MRO. It is an essential tool for engine auxiliary system maintenance.