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A tractor being mechanically repaired in Werneuchen, 1966 Field repair of aircraft engine (1915–1916). The technical meaning of maintenance involves functional checks, servicing, repairing or replacing of necessary devices, equipment, machinery, building infrastructure and supporting utilities in industrial, business, and residential installations.
Maintenance, and hence maintenance engineering, is increasing in importance due to rising amounts of equipment, systems, machineries and infrastructure. Since the Industrial Revolution , devices, equipment, machinery and structures have grown increasingly complex, requiring a host of personnel, vocations and related systems needed to maintain ...
Organizational, or O-level maintenance occurs at the organizational unit level, for example by a single maintenance squadron as part of an aircraft wing. O-level maintenance is typically optimized for quick turn-around, to enhance operational availability.
The construction documents, specifically the technical specifications, require the contractor to submit product data, samples, and shop drawings to the architect and engineer for approval. This is one of the first steps that is taken by the contractor after execution of the construction contract and issuance of the "Notice to Proceed".
This ranking is used to optimize inspection intervals based on site-acceptable risk levels and operating limits, while mitigating risks as appropriate. RBI analysis can be qualitative, quantitative or semi-quantitative in nature. Probability of failure is estimated on the basis of the types of degradation mechanisms operating in the component.
The construction industry contributes significantly to many countries' gross domestic products . Global expenditure on construction activities was about $4 trillion in 2012. In 2022, expenditure on the construction industry exceeded $11 trillion a year, equivalent to about 13 percent of global GDP. This spending was forecasted to rise to around ...
Maintenance check of electronic equipment on a U.S. Navy aircraft. An inspection is, most generally, an organized examination or formal evaluation exercise. In engineering activities inspection involves the measurements, tests, and gauges applied to certain characteristics in regard to an object or activity.
Construction cost management is a fee-based service in which the construction manager (CM) is responsible exclusively to the owner, acting in the owner's interests at every stage of the project. The construction manager offers impartial advice on matters such as: Optimum use of available funds; Control of the scope of the work; Project scheduling