Final answer:
The engine operating limit for oil pressure during an assisted air start is essential for guaranteeing proper lubrication while preventing damage from pressure extremes, contributing to safe aircraft operation.
Step-by-step explanation:
The engine operating limit for oil pressure during an assisted air start is crucial for ensuring the engine receives the proper lubrication without exceeding pressure limits that could cause damage. During an assisted air start, which is an alternative method of starting an aircraft's engine typically using compressed air, it is important to monitor the oil pressure to make sure it falls within the acceptable range. If the oil pressure is too low, critical engine components may not be adequately lubricated, leading to increased wear or even catastrophic failure. On the other hand, if the pressure is too high, it may indicate a blockage or malfunction that could also harm the engine or result in a safety issue for the aircraft.