Question 1 of 2707066636eed28f7522a1c51e219

You are preparing for a borescope inspection of a gas turbine engine. Prior to the inspection it is recommended that you do which of the following?

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Question 1 of 27070
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You are preparing for a borescope inspection of a gas turbine engine. Prior to the inspection it is recommended that you do which of the following?

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🔍 Key Concepts

• Purpose of a borescope inspection in a gas turbine (what are you trying to see and where do deposits usually build up?) • How compressor washing affects visibility of blades and vanes compared to washing the power turbine or whole engine • Any risks or drawbacks of water washing certain sections immediately before an internal visual inspection

💭 Think About

• Think about which section of the gas turbine is most prone to fouling that will block your view during a borescope inspection. • Consider whether water washing all sections right before an inspection could leave residual moisture, loosen debris, or otherwise affect what you see. • Ask yourself which component’s cleanliness most directly improves the effectiveness of a borescope inspection and data you’re trying to collect.

✅ Before You Answer

• Verify which part of the engine (compressor vs power turbine) typically accumulates the most deposits that reduce efficiency and visual clarity. • Check standard maintenance practices: is it common to wash the entire engine or focus on a specific section before borescoping? • Consider if any option might introduce water or loose debris into areas where it could interfere with, rather than help, the inspection.