PWA211817 is a precision-manufactured aerospace engine fan blade balancing fixture, developed by Pratt & Whitney, compliant with AS9100D quality standards and FAA/EASA MRO regulations, designed for specific large turbofan engine fan blades. It is used to secure fan blades during balancing tests in maintenance, ensuring the blades maintain a stable, precise position, which is critical for accurate measurement of blade weight and position deviations, correcting imbalance to avoid abnormal engine vibration during operation.

Made from high-strength, lightweight aluminum alloy, it features a precision positioning clamp, operating stably in -10°C to 100°C workshop environments. Weighing 0.82kg with a quick-lock structure, it streamlines the balancing test workflow while avoiding damage to blade surfaces. It is an essential tool for engine fan system MRO work.