J71043-131-GE90 is a precision-engineered aircraft engine compressor blade calibration and verification fixture, compliant with AS9100D aerospace quality standards and GE Aviation Technical Specification GETS 7200, exclusively designed for GE90 powerplants on Boeing 777 wide-body aircraft during MRO and overhaul operations.

Fabricated from aerospace-grade aluminum alloy with a hard-anodized finish for corrosion resistance and dimensional stability, it accommodates blade root diameters of 50–70mm and airfoil lengths up to 420mm—optimized for GE90’s high-pressure compressor sections. The fixture integrates precision gauge slots for measuring blade twist, camber, and profile deviation, plus anti-deformation supports to preserve component integrity. Weighing 5.2 kg and measuring 430mm×260mm×210mm, it operates at -40°C to 85°C. Compliant with FAA Part 33 and EASA CS-E regulations, it ensures post-maintenance blade alignment, safeguarding compressor aerodynamics and engine thrust for long-haul commercial fleets.