What is the minimum engine oil pressure for the TH-73A?

• A. 30 psi
• B. 40 psi
• C. 50 psi
• D. 60 psi

Answer: (B)

The minimum engine oil pressure for the TH-73A is 40 psi. This specification is crucial for ensuring that the engine receives adequate lubrication under various operating conditions. Maintaining engine oil pressure at or above this minimum threshold helps to prevent engine wear, overheating, and potential mechanical failure. Consistently monitoring oil pressure is a critical part of pilot preflight procedures and in-flight checks, allowing for timely corrective actions if pressures drop below the specified limit. Understanding the importance of maintaining proper oil pressure helps enhance flight safety and engine reliability.