856A1081G05 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 inspection fixture, specialized in accurate dimensional and positional checks of combustion liners during MRO overhauls. It verifies key specs like concentricity, clearance gaps and surface flatness against standard tolerances, detects deformation, thermal damage or wear timely, avoids uneven combustion and local overheating caused by unqualified liners, and safeguards stable operation of the engine hot section under high pressure and temperature.Made of high-strength heat-resistant alloy steel, it resists high heat and mechanical impact, working stably at -55℃ to 360℃. Weighing 1.35kg, it features precision locating benchmarks and calibrated measuring references, enabling efficient, standardized inspection with consistent results. It is a vital tool to guarantee combustion chamber integrity and overall engine operational safety, efficiency and durability.