1957 study of reliability factors in electronic equipment. Commissioned by Rome Air Development Center at Griffiss Air Force Base, Rome, N.Y. Chapters: Reliability Concepts, Causes of Unreliability, System Aspects, Mathematical Approaches to Reliability, Electrical and Electronic Factors, Mechanical and Environmental Factors, Human Engineering, Component Parts, Interference, Automatic Production, Equipment Publications, Maintenance. Government report not copyrighted, contains copyrighted sections, likely now in public domain.