856A3767G01 is a precision aerospace fixture compliant with AS9100D quality standards and FAA/EASA regulations, dedicated to aircraft engine combustion chamber maintenance.It serves as a combustion chamber liner positioning fixture, specialized in accurate fixing and alignment of combustion chamber liners during MRO disassembly, inspection, repair and reassembly. It ensures strict concentricity and clearance accuracy, avoids liner misalignment-induced uneven combustion, local overheating and thermal deformation, which is critical for stable combustion efficiency and structural integrity under high temperature and pressure.Made of high-strength heat-resistant alloy steel, it resists high temperature and deformation, working stably at -55℃ to 360℃. Weighing 1.4kg, it features secure locking structure and precise locating pins for reliable clamping, enabling efficient maintenance. It is a vital tool to guarantee combustion chamber assembly precision and overall engine operational safety and stability.