You are conducting a borescope inspection of...

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Question 1 of 2066636eed28f7522a1c51df15

You are conducting a borescope inspection of the combustor section of a GE LM2500 gas turbine engine. You observe a one square inch hole in the combustor dome where burn through has removed the metal. What would be your course of action?

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Question 1 of 20

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🔍 Key Concepts

• Combustor dome function in a gas turbine and what a burn-through means structurally and thermally • How a one-square-inch hole affects flame stability, casing temperatures, and downstream turbine components • Standard safety margins and operating limitations when pressure-containing hot-section parts are breached

💭 Think About

• Ask yourself: Is the combustor dome a minor, non‑pressure part, or is it critical to containing high‑temperature, high‑pressure gases? • Consider whether any operation with a known burn-through in the combustor could escalate damage to the high‑pressure turbine or create a fire hazard. • Think about which options imply accepting continued risk versus eliminating that risk, and which best fits professional engineering and safety practice.

✅ Before You Answer

• Verify whether a burn-through in the combustor dome is considered acceptable, repairable in place, or cause for immediate removal from service under typical turbine maintenance guidance. • Check if any option that suggests continued operation relies only on monitoring rather than physically correcting the structural failure. • Confirm whether an onboard "repair kit" would ever be authorized to patch a hole in a pressure-boundary hot-section component like the combustor dome.

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