During the in-service life of a given aircraft, different antennas are installed on the fuselage of the aircraftrnfor different operational and regulatory requirements. These antennas are part of the Communication,rnNavigation and surveillance (CNS) systems of aircraft. Antennas play the greatest role in enhancing thernoperational safety and functionality of a given civil or military aircraft by providing reliable communicationrnand navigation systems. During antenna installation, the fuselage skin loses its structural integrity. Takingrnthis into consideration and also fracture mechanics as a basic principle, damage tolerance analysis forrnantenna installations on pressurized transport airplanes has been studied. For skin modifications, first fromrna static strength point of view, the elliptical antenna mounting plate is compared with those of circular andrnrectangular mounting plates. Next, based on the first result, from the stress concentration factor point ofrnview, the best antenna cut-out shape was studied by comparing antenna cut-out shapes such as elliptical,rncircular, and square cut-outs for mounting plates subjected to biaxial loads. Then, considering the bestrnmounting plate shape and antenna cut-out, i.e., having the lowest stress concentration factor, damagerntolerance analysis (DTA) is done using Linear Elastic Fracture Mechanics (LEFM) and the establishingrninspection type and inspection threshold are studied. To perform the above activities, a special tool, FiniternElement Analysis (FEA), i.e., ANSYS application software, was used to perform static and fatiguernsimulations along the potential crack growth path for a flaw initiating from the antenna cut-out normal tornthe stress application direction. The output from finite element modelling and analysis is compared withrnthe analytical for the safe installation of the antenna. With respect to the above framework, the study wasrndone, and the result shows that the circular mounting plate is relatively better than those of the rectangularrnmounting plate and the elliptical mounting plate. With regard to the cut-out shape, for the applied biaxialrntension loads, a circular cut-out is relatively better than those of the square and elliptical cut-out shapes. Arncircular mounting plate with a circular antenna cut-out is better than an elliptical or rectangular mountingrnplate. Starting with the initial crack length of arnirn and the progressive crack length of arni+1 rnto the critical crackrnlength value ac, which is calculated using the fracture toughness of the skin materials, an estimatedrninspection type and inspection threshold (damage detection) were established.