What type of inspection follows a ground incident that leads to unexpected propeller stoppage?

The situation described involves an unexpected propeller stoppage, which suggests a significant technical issue that could stem from multiple sources. A crankshaft runout inspection is specifically relevant in this context because it assesses the alignment and integrity of the crankshaft that drives the propeller. An abnormal runout could indicate that the crankshaft is misaligned or damaged, which could directly contribute to propeller failures or stoppages.

This type of inspection is critical after any ground incident involving the propeller system, as it helps to diagnose issues that could affect engine performance and overall flight safety. The aim is to ensure that all moving parts are functioning as they should and to identify any potential safety hazards before the aircraft is returned to service.

In contrast, blade inspection, general aircraft inspection, and oil analysis serve different diagnostic purposes and may not directly address the immediate concerns arising from a propeller stoppage. For example, blade inspection focuses on the condition of the propeller blades themselves, while a general aircraft inspection is broader and covers the entire airframe and systems. Oil analysis, while useful in detecting engine wear and contamination, does not specifically evaluate the mechanical conditions leading to an unexpected propeller event. Thus, the crankshaft runout inspection is the most pertinent follow-up action