Oil level sensing and fault detection

An oil level measurement system for measuring an oil level within an aircraft engine, the system comprising:

• a magnetic float disposed in the aircraft engine;
• a first sensor ladder configured for sensing a position of the magnetic float;
• a second sensor ladder configured for sensing a position of the magnetic float;
• an aircraft engine status signal indicative of a current state of the aircraft engine;
• a controller configured to receive the aircraft engine status signal, a first signal from the first sensor ladder, and a second signal from the second sensor ladder, wherein the controller is configured to determine an oil level of the aircraft engine based on the aircraft engine status signal, the first signal, and the second signal, such that when the aircraft engine is off a static oil level check is performed and when the aircraft engine is starting or running a dynamic oil level check is performed;
• and
• a notification subsystem communicatively coupled to the controller, wherein the notification subsystem is configured to notify a user of a fault when the first signal is determined by the controller to be different from the second signal, and the notification subsystem comprises a display device configured to display an oil quantity only when the oil level is static.