What is the maximum allowable transmission oil pressure?

• A. 60 psi
• B. 70 psi
• C. 80 psi
• D. 90 psi

Answer: (B)

The maximum allowable transmission oil pressure in the TH-73A is 70 psi. This value is critical for ensuring the proper operation and longevity of the transmission system. Maintaining oil pressure within this specified range is essential for effective lubrication and cooling of the transmission components, which helps prevent wear and potential failures.

If operating outside of the designated pressure limits, it can lead to insufficient lubrication or overheating, compromising the system's performance and safety. Understanding the proper transmission oil pressure aids in effective monitoring during flight operations, contributing to the overall reliability of the aircraft.