The aviation industry is increasingly adopting extended reality (XR) to modernise technician training and maintenance operations. By integrating virtual, augmented, and mixed reality, companies can provide high-stakes instruction in a safe environment without the need for expensive physical equipment or grounded aircraft. These immersive tools allow trainees to build muscle memory and visual intuition through repetitive practice of complex procedures, such as engine removals or structural inspections. While the technology offers significant cost savings and improves technician confidence, experts maintain that it serves as a supplement rather than a total replacement for hands-on experience and human mentorship. Future developments point toward AI-driven adaptive learning, ensuring that digital simulations become even more personalised and effective. Ultimately, the transition to digital training aims to enhance safety and efficiency while preserving the essential ethical and tactile wisdom passed down by veteran engineers.