Some Pictures of an R44 during 100 hour inspection with it’s skins off
R44 Skins Off Upper Sheave Mast Engine
R44 100 Hour Skins Off

Some Pictures of an R44 during 100 hour inspection with it’s skins off
I took these pictures of an R44 Raven II during a 100 hour inspection. Unlike the R22, the R44 has much more of the aircraft cowled so that you can’t see as much during preflight inspections. I took these pictures to illustrate some of the components you can’t easilly see during preflight.