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Are Scheduled Component Overhauls Necessary?
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English
Abstract
Classic reliability theory holds that a component’s reliability characteristics include wear-out. Regulations governing overhaul time limits assume, therefore, that scheduled component overhauls are good “preventive maintenance ”when done before “wear-out” has gone too far. This paper disputes current practice and holds that scheduled component overhauls are almost never justified. This position is supported by illustrations from four special maintenance programs currently in use at United Air Lines.
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Citation
Hussey, P. and Thomas, S., "Are Scheduled Component Overhauls Necessary?," SAE Technical Paper 640791, 1964, https://doi.org/10.4271/640791.Also In
References
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- Flehinger Betty J. “A Markovian Model for the Analysis of the Effects of Marginal Testing on System Reliability,” International Business Machines Corp., Research Report No. RW-20 Oct. 14 1960
- Joe C. Y. “A Study of the Relationship Between Operating Time and Reliability of Electronic Equipment and A Proposal for Reliability Controlled Overhaul,” United Air Lines Report #POA-38 April 9 1962
- Kamins M. McCall J. J. Jr “Rules for Planned Replacement of Aircraft and Missile Parts.” RAND Corp. Memorandum RM-3810-PR November 1961
- Lesser R. H. “TARAN - A New Approach To Hydraulic System Overhaul,” United Air Lines Report No. F-864 Feb. 12 1963
- Nowlan F.S. “Fundamental Considerations Pertaining to Equipment Reliability and Maintenance Policy,” United Air Lines Report # POA-74 March 25 1963
- Ungar A.J. “A Program to Demonstrate United Air Lines’ Ability to Control Component Reliability in the Absence of FAA-Imposed Overhaul Time Limits,” United Air Lines Report #POA-67 Dec. 17 1962