Gregory Fehr is a Principal Engineer at ATMG, Las Vegas, NV is a metallurgical and mechanical engineer with training in nondestructive testing and structural steel welded and bolted connections. For over 30 years, he has performed failure analyses and metallurgical testing on structures, pipes, valves, pumps, and fittings. As a certified NACE Corrosion Technologist and Cathodic Protection Specialist, Mr. Fehr has extensive experience in corrosion analysis and mitigation. Mr. Fehr is also a NAARSO Certified Amusement Ride Inspector. He has participated in Task Groups for ASTM, ASNT, API, EPRI, NACE, has been published in Electrical World, ASME Proceedings, and others, and has been a Level III trainer for NDT courses.