856A1802G03 is a precision aerospace fixture compliant with AS9100D quality standards and FAA/EASA regulations, dedicated to aircraft engine compressor section maintenance.It serves as a compressor stator vane inspection fixture, specialized in accurate dimensional and positional checks of compressor stator vanes during MRO overhauls. It verifies core specs like installation angle, spacing, profile accuracy and concentricity against strict aviation tolerances, detects wear, deformation or positioning deviation timely, prevents airflow turbulence and compression efficiency loss, avoids uneven impact on rotor blades under high-speed rotation, and ensures stable air intake and pressure boost across all engine operating conditions.Made of high-strength heat-resistant alloy steel, it resists high temperature and mechanical impact, working stably at -55℃ to 330℃. Weighing 1.25kg, it features calibrated measuring references and precision locating structures, enabling standardized, efficient inspection with reliable repeatable results. It is a vital tool to guarantee compressor aerodynamic integrity and overall engine operational safety, efficiency and service life.