Similar Cases:

Generator Failure and Meltdown

Cracking in the Welds in Wide Flange Column Connections in Structural Steel

Transformer Explosion at a Hydroelectric Station

Penstock Failure at PG&E's Helms Creek Pumped Storage Hydroelectric Plant

Structural Steel Weld Quality Audit

Generator Rotor Retaining Ring and Tooth-Top Cracks

APTECH was employed by an insurance company to provide a third-party opinion regarding cracks in a power plant generator rotor. There were cracks in the rotor tooth tops and indications in the retaining rings. Field metallography, nondestructive examination, engineering report review, and interviews of plant personnel formed the basis of APTECH's conclusions. We presented expert opinions regarding the cause and structural significance of the NDE indications and cracking.

Satish Almaula		Plant failure and root cause analysis; process and design engineering analysis; process technology development and testing; plant engineering, operations, maintenance and safety management; plant and process control system management.

Michael Cronin, P.E.		Stress analysis, design evaluation, engineering mechanics

Kimble Clark, Ph.D.		Failure analysis, heat transfer & thermodynamics, process plant equipment failures & explosions, fuel science, combustion, industrial fires and explosions.

Eric Sullivan, P.E.		Metallurgy, welding, failure analysis, fire and explosion investigations, equipment, piping.

Steve Paterson		Metallurgy, welding, boiler pressure part and machinery failure analysis.