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Anisotropy and crack path stability in aluminium lithium alloys remain a concern which has limited its widespread use especially in primary structural components. The aim of this work is to investigate the crack path stability of 2050-T851 aluminium lithium alloy in ductile tearing of compact tension specimens loaded under quasi-static mode I conditions. Results show significant anisotropy exists in 2050-T851 but it has been significantly improved when compared to previous results obtained for 2195. Initial analysis of the fracture surfaces and experimental data has produced some interesting observations which warrant further investigation into the role of microstructure.