Enabling Technologies for O&M Cost Management

Heavy Duty Industrial — Alstom 11N1, 11NM, 11N2, 13D, 13E

Liburdi Advanced Repairs for all Expensive Critical Turbine Components:

• Blades,
• Vanes,
• Shroud Blocks,
• Combustor Segments,
• Transition Hot Gas Case and Vane Carrier,
• Fuel Nozzles.

Component Life Extension — Savings for the Operator:

Conventional repairs carried out by others are limited to weld repairs and strip/recoat. The parts are then typically retired after 50,000 - 70,000 hours of service per OEM convention.

Liburdi's Advanced Repairs are designed and proven to extend the reliable service life to 100,000+ hours. This can amount to a maintenance savings of $900,000 - $1,800,000 at the time of engine overhaul.

Savings = the difference between the cost of new parts and the cost of the Advanced Repairs.

Liburdi's Advanced Repair Processes:

• Full Solution Rejuvenation^® (FSR^®) to restore Blade and Vane alloys to as-new alloy strength,
• Internal Cooling passages Stripped and Recoated — new coatings internal and external,
• Stage 1 Blade L3667 Oxidation Resistant Tip Weld Material — to maintain engine performance,
• Stage 1, 2 Blade Coating Upgrades — TBC,
• Stage 3, 4 Blade Coating Upgrades — Silicon Aluminide,
• LPM^® High Strength Powder Metallurgy Restoration for Vanes,
• Repair and Upgrades for Combustor Components.

Entire fleets have benefited from Liburdi's Advanced Repairs to reliably extend life — 100+ Sets Repaired.