During a week‑long internship at Air Algérie’s Maintenance Base, I supported precision maintenance across multiple aircraft systems. Key activities included inspection and repair of hydraulic and pneumatic circuits, emergency oxygen systems, and composite structural panels (A350 XWB, 787). I gained proficiency in non‑destructive testing methods (PT, UT, MT, RT) and participated in engine work on CFM56‑7B, CF6, and PW127 units—conducting vibration analysis, endoscopic inspections, and full teardown/reassembly. Additional exposure to gearbox, landing‑gear assemblies, machining, and welding workshops solidified my understanding of aviation‑grade mechanical systems and rigorous safety protocols.