341-1100-1GSE is a specialized aerospace aircraft ground support equipment (GSE) hydraulic pressure test tool, compliant with AS9100D quality standards and aviation GSE safety specifications, designed for commercial aircraft maintenance. It is used to test the pressure tightness of aircraft hydraulic systems during ground maintenance, including the landing gear, thrust reverser, and flight control hydraulic circuits, which is critical for identifying potential leaks or pressure anomalies before flight, avoiding in-flight hydraulic system failures.

Made from high-strength, pressure-resistant stainless steel, it operates stably in -20°C to 110°C workshop environments. Weighing 0.82kg with a quick-connect hydraulic interface, it delivers a test pressure range of 0 to 5000 psi, with a measurement accuracy within 0.2 psi. It is an essential tool for aircraft hydraulic system ground MRO work.