TECHNICAL AND ECONOMICAL BENEFITS OF AVIATION CBM IN MAINTENANCE, REPAIR & OVERHAUL (MRO) - REVIEW

Maintenance along with its technical and management activities during repair periods has impact on a product or an asset’s economic factors. Maintenance plans have been divided into several categories, including condition based maintenance - CBM, preventative maintenance, and breakdown maintenance. While preventative maintenance frequently inspects a product at predetermined intervals to avoid abnormalities, breakdown maintenance is performed once certain issues, such as product breakdowns, are discovered. All these require higher cost values and passive in avoiding defects ahead. The contents of this paper are concerning CBM in technical systems. It has also been shown that the traditional maintenance techniques, corrective and preventive, are very costly. With CBM one utilizes predictive maintenance, i.e. perform maintenance based upon need. One assesses the condition of the assets and makes judgments whether or not maintenance should be performed. This indicates that the maintenance intervals will be decided dynamically. Vibrations, temperature, oil, acoustic analysis etc. are some of the basic parameters that will reveal the condition. There are also just a few areas in the industry where CBM (or possibly even just condition monitoring) have gained acceptance.