Size (CM)：30*21*9 

Weight (KG)：2 

F71292-17 is a precision-engineered borescope adapter designed for commercial aircraft engine maintenance, providing enhanced access to internal engine components during inspection procedures. This lightweight (1.8kg) adapter features a flexible articulating arm with 360-degree rotational capability, allowing technicians to visualize hard-to-reach areas of turbine blades, compressor sections, and combustion chambers with exceptional clarity. 

Brand
JUNXUN

Overview
The F71292-17 is a high-precision Protractor Base Assembly custom-engineered for the structural alignment, rigging, and maintenance of Boeing 707, 727, and classic 737 (737-100 through -500 series) commercial aircraft. Classified as a critical flight control Ground Support Equipment (GSE) tooling component, this specialized hardware serves as the foundational reference base for digital or mechanical protractors during control surface deflection testing. Manufactured by JUNXUN to comply with strict Boeing technical criteria, the F71292-17 provides an absolute coplanar mating interface against the airframe, eliminating angular tracking errors and guaranteeing that flaps, slats, and stabilizers are calibrated to perfect OEM aerodynamic specifications.

Key Points
Multi-Fleet Boeing Compatibility: Specifically machined to mount perfectly onto the standardized rigging stations and control surface hinges of classic Boeing 707, 727, and 737 airframes.

Ultra-Precise Angular Baseline: Provides a micro-flat, stabilized reference surface that prevents protractor rocking or geometric drifting during fine-tolerance rigging audits.

Heavy-Duty Anodized Construction: CNC-machined from premium, high-tensile aerospace-grade aluminum alloy to offer maximum structural rigidity while keeping the tool lightweight for hangar technicians.

Non-Marring Mechanical Interface: Features specialized surface treatments and protective cushioning profiles to prevent scratching or damaging expensive painted chemical coatings on control skins.

Applications
Flight Control Surface Rigging: Essential tool crib equipment utilized by certified MRO stations to perform mandatory deflection angle measurements on elevators, rudders, and ailerons during heavy checks.

Hangar C-Check & D-Check Auditing: Deployed by commercial airline engineering teams during scheduled fleet overhaul inspections to verify symmetry and identify control rigging backlash.

Airframe Structural Repair Alignment: Applied directly within structural repair docks following component swaps to ensure newly installed flight control actuation linkages conform perfectly to baseline flight dynamics.