How many Lug Holes Engine Mount are listed for the diffuser case?

How many Lug Holes Engine Mount are listed for the diffuser case?

• A. 7
• B. 4
• C. 9
• D. 6

Answer: (A)

Lug holes on the diffuser case engine mount define where bolts or pins pass to secure the engine to the mount. The count is fixed by the flange design, with the UH-60S diffuser case using seven lug holes to provide enough load paths and balanced, accurate alignment around the circumference. This seven-hole pattern helps ensure the engine remains properly positioned under flight loads and that fasteners have even engagement. So, when you inspect or assemble, you should find seven lug holes in that diffuser case mounting flange. Other counts would indicate a different component, variant, or revision rather than the standard diffuser case mount.

Lug holes on the diffuser case engine mount define where bolts or pins pass to secure the engine to the mount. The count is fixed by the flange design, with the UH-60S diffuser case using seven lug holes to provide enough load paths and balanced, accurate alignment around the circumference. This seven-hole pattern helps ensure the engine remains properly positioned under flight loads and that fasteners have even engagement. So, when you inspect or assemble, you should find seven lug holes in that diffuser case mounting flange. Other counts would indicate a different component, variant, or revision rather than the standard diffuser case mount.