GE 7FA Hot Gas Path Inspection Guide
Your EOH counter just crossed into territory that means one thing: a 7FA Hot Gas Path Inspection is coming up on the calendar, and the planning window is already shrinking. A GE 7FA Hot Gas Path Inspection is a scheduled teardown that examines the stage 1 through stage 3 turbine nozzles, buckets, shrouds, and combustion...
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Industrial Generator Rewind Process Explained Step by Step
A stator that just failed its megohm test, or one trending toward it, puts a plant manager in a position where guessing isn’t an option. An industrial generator rewind replaces the copper windings in a stator or rotor after insulation fails or electrical damage occurs, and knowing exactly what that generator repair and rewind work involves...
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GE 7FA Inspection & Diagnostics Guide: A Plant Manager’s Framework for CI, HGPI, and Major Inspections
An outage window is coming, and the honest question underneath every planning meeting is which inspection tier actually applies and what happens if that call turns out to be wrong. This GE 7FA inspection guide exists because that question has a data-driven answer, not a guess made after the casing comes off. The GE 7FA...
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How to Know If Your Generator Needs a Rewind vs Replacement
A tripped generator or a failed insulation test doesn’t leave much room to think, but the decision that follows deserves more than a guess. The choice isn’t a coin flip based on which repair shop happens to answer the phone first, and it shouldn’t be treated like one. Working through generator rewind vs replacement decisions...
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Common GE 7FA Gas Turbine Failure Modes and What Causes Them
A trip without warning. A borescope image that shows something nobody expected. The question that follows is always the same: how serious is this? The most common 7FA failure modes cluster into four zones: the hot gas path, the combustion system, the compressor, and the rotor and bearing assembly. Knowing which one you’re looking at...
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7FA Bucket Cracking Explained
The finding is on the report, the borescope images are attached, and the question isn’t academic: can the unit keep running until the next planned outage, or does this need attention now? 7FA bucket cracking most often traces back to thermal mechanical fatigue, high cycle fatigue, creep rupture, oxidation, or DLN combustion dynamics acting on...
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