AD/A066 579, RELIABILITY-CENTERED MAINTENANCE (RCM) (DEC 1978)

AD/A066 579, RELIABILITY-CENTERED MAINTENANCE (RCM) (DEC 1978)., This is also known as the F. Stanley Nowlan and Howard F. Heap RCM report, or just the Nowlan & Heap report. This book explains basic concepts, principles, definitions, and applications of a logical discipline for development of efficient schedule (preventive) maintenance programs for complex equipment, and the on-going management of such programs. Such programs are called reliability-centered maintenance (RCM) programs because they are centered on achieving the inherent safety and reliability capabilities of equipment at a minimum costs. A U.S. Department of Defense objective in sponsoring preparation of this document was that it serves as a guide for application to a wide range of different types of military equipment. There are essentially only four types of tasks in a scheduled maintenance program. Mechanics can be asked to: 1. Inspect an item to detect a potential failure mode. 2. Rework an item before a maximum permissible age is exceeded. 3. Discard an item before a maximum permissible age is exceeded. 4. Inspect an item to find failures that have already occurred but were not evident to the equipment operating crew. A central problem addressed in this book is how to determine which types of scheduled maintenance tasks, if any, should be applied to an item and how frequently assigned tasks should be accomplished. The use of a decision diagram as an aid in this analysis is illustrated. The net result is a structured, systematic blend of experience, judgment, and operational data/information to identify and analyze which type of maintenance task is both applicable and effective for each significant item as it relates to a particular type of equipment. A concluding chapter emphasizes the key importance of having a mutually supportive partnership between the personnel responsible for equipment design and the personnel responsible for equipment maintenance if maximum RCM results are to be achieved. Appendices are included as follows: 1. Procedures for auditing the development and implementation of an RCM program. 2. A historical review of equipment maintenance evolution. 3. Techniques of performing actuarial analyses. 4. An annotated bibliography.