Maintenance

group of analysis techniques to evaluate properties of something without causing damage

thumb|A tractor being mechanically repaired in Werneuchen, 1966 thumb|Field repair of aircraft engine (1915–1916)

building (having any form) where locomotives are housed, washed, serviced

frequency with which an engineered system or component fails

workshops with DIY items repair

legal right for owners of devices and equipment to freely modify and repair products

Maintainability is the ease of maintaining or providing maintenance for a functioning product or service. Depending on the field, it can have slightly different meanings.

thumb|"Cashmere darn", a fine darning technique for twill fabric thumb|"Swiss darning" to repair knits

iFixit ( ) is an American e-commerce and how-to website that publishes free wiki-like online repair guides and tear-downs of consumer electronics and gadgets. It also sells repair parts, tools, and accessories. It is a private company in San Luis Obispo, California, founded in 2003, spurred by Kyle Wiens not being able to locate an Apple iBook G3 repair manual while the company's founders were attending Cal Poly San Luis Obispo.

software to manage maintenance operations

thumb|Non destructive testing with Polux in Brazil Polux is a measuring device for checking the condition of wooden electricity and telephone poles. This is a specific non-destructive testing tool for wooden poles.

In computing and telecommunications, downtime (also (system) outage or (system) drought colloquially) is a period when a system is unavailable. The unavailability is the proportion of a time-span that a system is unavailable or offline. This is usually a result of the system failing to function because of an unplanned event, or because of routine maintenance (a planned event).

determining the condition of in-service equipment in order to estimate when maintenance should be performed

thumb|Timber Beam Strength Test Sylvatest is an ultrasonic measuring device that provides an overall diagnosis of a wooden component to test its mechanical strength. This is a specific non-destructive testing tool for wooden beams.

process of collecting and analyzing data to determine the cause of a failure, often with the goal of determining corrective actions or liability

monitoring a parameter of condition in machinery in order to identify a significant change which is indicative of a developing fault

maintenance planning approach based on reliability and safety system assessment

performance of tasks which maintain an aircraft's continuing airworthiness and operational availability

thumb|Machine Shop Terotechnology (; from Greek τηρεῖν tērein "to care for" and technology) is the technology of installation, including the efficient use and management of equipment. It also involves the use of technology to carry out maintenance functions in a bid to reduce cost and increase productivity.

process of implementing a damage detection and characterization strategy for engineering structures such as bridges and buildings

periodic maintenance of a motor vehicle

type of mechanism that permits a machine or electronic component to test itself

maintenance task performed to identify, isolate, and rectify a fault so that the failed equipment, machine, or system can be restored to an operational condition

Donecle is a Toulouse-based aircraft manufacturer which develops autonomous aircraft inspection UAVs. The company offers single UAVs and swarms of UAVs to visually inspect the exterior of airliners.

Air-Cobot (Aircraft Inspection enhanced by smaRt & Collaborative rOBOT) is a French research and development project of a wheeled collaborative mobile robot able to inspect aircraft during maintenance operations. This multi-partner project involves research laboratories and industry. Research around this prototype was developed in three domains: autonomous navigation, human-robot collaboration and nondestructive testing.

Prognostics is an engineering discipline focused on predicting the time at which a system or a component will no longer perform its intended function. This lack of performance is most often a failure beyond which the system can no longer be used to meet desired performance. The predicted time then becomes the remaining useful life (RUL), which is an important concept in decision making for contingency mitigation. Prognostics predicts the future performance of a component by assessing the extent of deviation or degradation of a system from its expected normal operating conditions. The science o

systematic technique for failure analysis

any factor (component, equipment, personnel, process, procedure, software, etc.) that is essential to business operation or to an organization

Engineering discipline

refilling of laser printer toner cartridges

maintenance and resolution of problems in a house

practice of keeping computers in a good state of repair

practice of removing parts for repairing a similar machine

artificial physical object

thumb|right|The creation of products that can be repaired, and reduce prices for sustainable products is widely supported by European, American and Chinese respondents in the 2020–2021 European Investment Bank Climate Survey. Repairability is a measure of the degree to and ease with which a product can be repaired and maintained, usually by end consumers. Repairable products are put in contrast to obsolescence or products designed with planned obsolescence.

defects in design, process, quality, or part application, which are the underlying cause of a failure or which initiate a process which leads to failure