SGT-A35 Nozzle Guide Vane Repair with LPM® Restores Life and Savings

Graphic with headline ‘Turning Non-Repairable Into Service-Ready’ featuring Liburdi Powder Metallurgy (LPM®) and image of repaired turbine NGV component

What happens when critical SGT-A35 (RB211) gas turbine components are labelled “non-repairable”? At Liburdi Turbine Services, that’s when the real work begins.

This case study shows how precision nozzle guide vane repair with LPM® brings parts back to service while controlling cost and waste.

The Liburdi Solution

Using our Liburdi Powder Metallurgy (LPM®) process, Liburdi rebuilt the eroded airfoil geometry with high-strength alloy powder as part of a detailed nozzle guide vane repair. The repair included:

Close-up of worn gas turbine nozzle guide vanes showing oxidation, discoloration, and surface damage.

SGT-A35 (RB211) NGV service Damage Observed.

LPM® isn’t just a repair; it’s a reconstruction method that outperforms conventional weld repairs. It’s fully authorized by OEMs and has been used for over 20 years on aircraft, industrial, and aeroderivative gas turbine components.

Step-by-step images of turbine airfoil undergoing Liburdi LPM® repair: surfaces prepped with cooling holes opened, alloy applied to rebuild wall thickness, and final machining restoring cooling holes and geometry to OEM specifications.

From cracked and oxidized to service ready, LPM extends part life while saving six figures

The Results
Repaired gas turbine nozzle guide vane after Liburdi LPM® process, fully restored to service-ready condition with rebuilt surfaces and cooling holes.

Recoated NGV restored to service ready condition with extended life and OEM performance.

This was not a one-time success, but the product of proven processes, expert engineering, and Liburdi’s dedication to excellence in every repair.

Why It Matters

Repairs like this don’t just cut costs, they keep parts in service longer, reduce waste, and support a sustainable circular economy. Every component saved means less reliance on raw materials and fewer parts sent to the landfill, helping operators meet both cost and ESG goals.

Circular economy flowchart showing lifecycle of parts: extracting raw materials, parts supply, manufacturing, distribution, user, collection, and end-of-life options including service, refurbish, parts harvesting, recycle, or incineration and landfill.

Extending component life supports the circular economy; keeping parts in service longer, reducing waste and minimizing reliance on new raw materials

For operators facing long lead times or limited part availability, it’s a reminder that “non-repairable” doesn’t always mean the end. Proven nozzle guide vane repair can bridge availability gaps without sacrificing performance.

Have a component labelled ‘non-repairable’? Let’s talk about what’s possible. Contact us at info@liburditurbineservices.com.