How often should thrust bearing nuts be checked for tightness on new or newly overhauled engines?

The recommended frequency for checking the tightness of thrust bearing nuts on new or newly overhauled engines is at the first 50-hour inspection and every 150 hours thereafter. This schedule is critical for ensuring the integrity and safety of the engine, particularly after it has been newly assembled or overhauled when components are settling into place. The initial check at the 50-hour mark allows for the identification and correction of any potential issues that may arise from the initial operation. Following this, regular checks every 150 hours help ensure that the thrust bearing nuts maintain their appropriate tightness and prevent any risk of failure during operation. Regular monitoring is essential for maintenance practices to promote engine reliability and performance over time.