Causes can include inlet distortion, damage, variable-geometry faults, fuel scheduling or rapid operating changes.
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ENGINES & PROPULSIONADVANCED
Compressor surge
engine compressor surge Synonym
A major instability in which compressor airflow and pressure rise break down across much of the compressor system.
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How the term is used
Surge can cause rapid pressure oscillation, flow reversal, loud reports, thrust loss and severe engine stress. Control systems are designed to maintain surge margin and respond to disturbances.
Where you may encounter it
Technicians apply the engine manual event inspection and fault-isolation requirements.
Stall and surge are related but not identical; assessment must use engine-specific data and recorded parameters.
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