The effectiveness of an off-line wash wash of a LM2500 GTE can be enhanced by doing which of the following?

Correct Answer: Option A — Stroking the Variable Stator Vanes to the maximum open position.

Stroking the Variable Stator Vanes (VSVs) to the maximum open position during an off-line wash ensures that cleaning solution reaches the entire surface area of the stator vanes and rotor blades. This maximizes the removal of salt and carbon deposits, restoring compressor efficiency and preventing long-term blade corrosion.