Gas turbine frame designations, and how to read them
Frame 5, MS7001FA, W501-D5A, V94. What the designations mean, and why the frame is the first thing to establish before anyone quotes a part.
Hot gas path components, and what wears first
Wear in a gas turbine is not evenly distributed. The combustion path absorbs most of it, and those parts decide how long a machine runs between outages.