In every project implementation, not everything is according to plan, many factors are causing project delays. This paper identifies the common factors contributing to project delays. The above problems occurred in the construction of the Submerged Turret Production Buoy structure which was carried out by PT. XYZ with height 28937 mm. In this study, an analysis of the factors causing project delay was carried out using a Fault Tree Analysis method. From the calculations obtained that the main factor contributing to project delay is a problematic client with a probability of 0.048812, the second factor is poor planning and management with a probability of 0.218186, the third factor is problematic contractors with a probability of 0.037472. The probability of project delay in the Submerged Turret Production Buoy structure is 0.304470. Knowing these factors will help to degrade the project delay in the future.

Damage to fixed offshore platforms can affect their structural integrity in addition to environmental conditions. Inspections are important because they aim to detect and control defects or damage to make repairs and carry out maintenance, if necessary, to reduce the possibility of failure. This study aims to determine the factors that affect inspections of fixed offshore platforms in Indonesia. To determine these factors, questionnaires were distributed to experts, including senior practitioners and Ph.D. academics, involved in offshore platforms. For data processing, we first used descriptive statistics based on the mean and SD to indicate the ranking of a factor’s importance. Secondly, we performed factor analyses to summarize the information contained in multiple factors. The two methods are carried out to complement each other in determining the factors formed from the respondents’ assessments. This study finds three factors in inspections of fixed offshore platforms based on the percentage variance: the first factor is environmental conditions, the second is structural design, and the third is anomalies and defects. By knowing these factors, such comprehension can be used as a consideration in conducting inspections. Each factor must be identified because each factor can affect inspections of fixed offshore platforms.