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Drive efficiency with a rotor-in major inspection
Did you know that 50% of rework is caused by removal and installation of parts that don’t require inspection? GE Vernova’s rotor-in major inspection (RI-MI) makes the process efficient while aiming to meet the highest turbine standards.
Benefits
Prevent wasted hours with a rotor-in major inspection
Our major inspection with rotor in-situ can prevent some 30–40% of outage labor hours spent removing components to access the gas turbine. No inspection processes are eliminated. The rotor can be rotated 360° while lower-half stator vanes can be cleaned and inspected.
What can you achieve?
- Increased availability of the unit, decreased schedule
- Reduce risks linked to heavy lifts over plant components
- No extra scaffolding needed for rotor removal
- Cost of crane, platform, and trucks (if customer supplied)
- Less heavy equipment on-site
- Less interfaces with other contractors
- Less lay-down area required to store parts
- No 480 V hookups required for rotor stands
Rotor-in major inspection timeline
Stages of rotor-in major inspection
- 12 to 18 months before outage
Unit is eligible: Introduction of rotor-in major inspection to CPM and service manager—internal review of conditions of applicability
- 6 to 12 months before outage
Presentation of rotor-in major inspection to customer: Planning pre-outage inspectionsPresentation of rotor-in major inspection to customer: Planning pre-outage inspections
- 3 to 6 months before outage
Internal reviews: CPM, PAC, service manager, and lead FE of borescope inspection, IGV inspection, and historical data
- 2 to 3 months before outage
Final decision: Customer agreement for rotor-in major inspection settled
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