{"id":741,"date":"2025-03-20T03:17:20","date_gmt":"2025-03-20T09:17:20","guid":{"rendered":"https:\/\/limblecmms.com\/blog\/?p=741"},"modified":"2025-05-30T12:59:24","modified_gmt":"2025-05-30T18:59:24","slug":"failure-metrics","status":"publish","type":"post","link":"https:\/\/limblecmms.com\/blog\/failure-metrics\/","title":{"rendered":"Guide to Understanding Failure Metrics"},"content":{"rendered":"<p><span style=\"font-weight: 400;\">Equipment or system failures can take a number of different forms and have varying consequences. But whether full or partial, minor or catastrophic, they all impact a business\u2019s productivity and operations. Understanding failures and examining how we respond to them is the only way to minimize their negative impact. That is the value of <\/span><b>failure metrics.\u00a0<\/b><\/p>\n<p><span style=\"font-weight: 400;\">In this guide, we will review the most useful and commonly used failure metrics, and set you up to use them within your organization. In no time, you\u2019ll have the data you need to update your maintenance processes and reduce the work stoppages associated with system failures.<\/span><\/p>\n<h2><span style=\"font-weight: 400;\">What are failure metrics?<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Failure metrics are a set of calculations that measure the average time a team or organization spends addressing and resolving system failures or their frequency. System failures may be machine breakdowns, power outages, or any other incident that causes a system to fail to perform its function, resulting in interruptions to operations.\u00a0<\/span><\/p>\n<h3><b>Benefits of tracking failure metrics<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Even organizations with the most efficient and effective maintenance teams will eventually experience equipment failures. Equipment failures cause downtime, emergency repair costs, and lost revenue.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">That is why tracking failure metrics and planning for failures is critical. Through planning, organizations can <\/span><b>help reduce the length, cost, and overall impact of downtime<\/b><span style=\"font-weight: 400;\">. Calculating failure metrics provides a number of other benefits such as:\u00a0<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Improved <\/span><a href=\"https:\/\/limblecmms.com\/maintenance-definitions\/equipment-reliability\/\"><span style=\"font-weight: 400;\">asset reliability<\/span><\/a><span style=\"font-weight: 400;\"> and lifespan<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Reduced <\/span><a href=\"https:\/\/limblecmms.com\/blog\/maintenance-cost-explained\/\"><span style=\"font-weight: 400;\">maintenance costs<\/span><\/a><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Better quality control and fewer defective products<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Safer and more productive workplace<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Improved <\/span><a href=\"https:\/\/limblecmms.com\/blog\/asset-management-strategy\/\"><span style=\"font-weight: 400;\">asset management<\/span><\/a><span style=\"font-weight: 400;\"> and efficiency<\/span><\/li>\n<\/ul>\n<h3><b>The most common failure metrics in maintenance: MTTR vs MTBF vs MTTF<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Tracking a few common failure metrics eliminates guesswork, helps maintenance managers improve their teams&#8217; response to failures, and minimizes operational disruptions. The three most common are:\u00a0<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Mean Time to Repair (MTTR)<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Mean Time Between Failures (MTBF)<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Mean Time To Failure (MTTF)<\/span><\/li>\n<\/ul>\n<h3><b>The data points used to calculate failure metrics<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Data is important but collecting and analyzing it can sometimes feel overwhelming. The good news is that calculating failure metrics is pretty simple, and only requires three key data points that most organizations can find in their <\/span><a href=\"https:\/\/limblecmms.com\/blog\/maintenance-history-records\/\"><span style=\"font-weight: 400;\">maintenance histories<\/span><\/a><span style=\"font-weight: 400;\">.\u00a0<\/span><\/p>\n<ul>\n<li aria-level=\"1\"><b>Labor hours spent on maintenance: <\/b><span style=\"font-weight: 400;\">The amount of time it takes to complete each maintenance work order, along with the dates they were performed.\u00a0<\/span><\/li>\n<li aria-level=\"1\"><b>Number of breakdowns and repairs: <\/b><span style=\"font-weight: 400;\">The number of system failures that occurred within the time period you are measuring.\u00a0<\/span><\/li>\n<li aria-level=\"1\"><b>Operational time: <\/b><span style=\"font-weight: 400;\">The expected or planned operating hours within the time period you are measuring.\u00a0<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Maintenance teams likely already document this information on paper, in spreadsheets, or more commonly, directly within software like a <\/span><a href=\"https:\/\/limblecmms.com\/cmms\/\"><span style=\"font-weight: 400;\">Computerized Maintenance Management System (CMMS)<\/span><\/a><span style=\"font-weight: 400;\">. Most CMMS systems can track these numbers and calculate failure metrics for you automatically.\u00a0<\/span><\/p>\n<h2><span style=\"font-weight: 400;\">What is MTTR?<\/span><\/h2>\n<p><a href=\"https:\/\/limblecmms.com\/metrics\/mean-time-to-repair\/\"><span style=\"font-weight: 400;\">Mean Time To Repair or MTTR<\/span><\/a><span style=\"font-weight: 400;\"> is the average time it takes to complete a repair from start to finish. It tells a team how quickly it is responding to asset issues and failures.<\/span><\/p>\n<p><span style=\"font-weight: 400;\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-3909 aligncenter\" src=\"https:\/\/limblecmms.com\/wp-content\/uploads\/MTTR-vs-MTBF-vs-MTTF-300x124.jpg\" alt=\"MTTR vs MTBF vs MTTF\" width=\"501\" height=\"207\" srcset=\"https:\/\/limblecmms.com\/wp-content\/uploads\/MTTR-vs-MTBF-vs-MTTF-300x124.jpg 300w, https:\/\/limblecmms.com\/wp-content\/uploads\/MTTR-vs-MTBF-vs-MTTF-1024x422.jpg 1024w, https:\/\/limblecmms.com\/wp-content\/uploads\/MTTR-vs-MTBF-vs-MTTF-768x317.jpg 768w, https:\/\/limblecmms.com\/wp-content\/uploads\/MTTR-vs-MTBF-vs-MTTF-451x186.jpg 451w, https:\/\/limblecmms.com\/wp-content\/uploads\/MTTR-vs-MTBF-vs-MTTF-554x229.jpg 554w, https:\/\/limblecmms.com\/wp-content\/uploads\/MTTR-vs-MTBF-vs-MTTF-93x38.jpg 93w, https:\/\/limblecmms.com\/wp-content\/uploads\/MTTR-vs-MTBF-vs-MTTF-540x223.jpg 540w, https:\/\/limblecmms.com\/wp-content\/uploads\/MTTR-vs-MTBF-vs-MTTF-100x41.jpg 100w, https:\/\/limblecmms.com\/wp-content\/uploads\/MTTR-vs-MTBF-vs-MTTF.jpg 1200w\" sizes=\"auto, (max-width: 501px) 100vw, 501px\" \/><\/span><\/p>\n<p><span style=\"font-weight: 400;\">By having a high-level overview of how long repairs generally take, maintenance managers can:\u00a0<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Understand how much time should be allowed for <\/span><a href=\"https:\/\/limblecmms.com\/maintenance-definitions\/maintenance-repair-operations-mro\/\"><span style=\"font-weight: 400;\">repairs<\/span><\/a><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Coordinate workloads for team members to ensure enough resources are available<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Find patterns by location, production line, asset, or team member<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Identify, investigate, and <\/span><a href=\"https:\/\/limblecmms.com\/blog\/what-is-troubleshooting\/\"><span style=\"font-weight: 400;\">troubleshoot<\/span><\/a><span style=\"font-weight: 400;\"> outliers to reduce the impact of the most costly events<\/span><\/li>\n<\/ul>\n<h3><b>Why MTTR is important<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Repairs equal <\/span><a href=\"https:\/\/limblecmms.com\/maintenance-definitions\/downtime\/\"><span style=\"font-weight: 400;\">downtime <\/span><\/a><span style=\"font-weight: 400;\">which has a huge effect on productivity and business results. In a manufacturing environment, long mean time to repair leads to missed production deadlines, increased labor costs, loss of revenue, and various operational issues. In a facility management environment, excessive mean time to repair can seriously impact customer satisfaction, safety, and legal risk.<\/span><\/p>\n<h3><b>How to calculate MTTR<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">MTTR is calculated by dividing the total maintenance time in a given period of time, by the total number of repairs performed in that same period. This information can then be segmented based on other available data points important to your organization like team member or location.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">For instance, if your team is deployed 5 times in one week to repair pumps on a production line, and your records show that your team has spent a total of 3 hours (180 minutes) that week repairing pumps, the MTTR for that week is 36 minutes.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">MTTR = 180 minutes of repair time \/ 5 total repairs<\/span><\/p>\n<p><span style=\"font-weight: 400;\">MTTR = 36 minutes<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Although each individual repair time may vary, this calculation provides a general idea of how much time is spent on each pump repair.\u00a0<\/span><\/p>\n<h3><b>Keys to improving MTTR<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">The primary way to improve \u2013 or lower \u2013 MTTR, is to make sure maintenance processes are as efficient as possible. That requires going back to the basics and shoring up things like:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><a href=\"https:\/\/limblecmms.com\/blog\/the-benefits-of-spare-parts-management\/\"><span style=\"font-weight: 400;\">Spare parts<\/span><\/a><span style=\"font-weight: 400;\"> and asset inventory management practices that make parts and equipment information easily accessible<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><a href=\"https:\/\/limblecmms.com\/blog\/how-to-write-an-sop\/\"><span style=\"font-weight: 400;\">Standard operating procedures (SOPs)<\/span><\/a><span style=\"font-weight: 400;\"> and maintenance checklists that streamline repairs<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Technician training<\/span><span style=\"font-weight: 400;\"> that ensures team members are prepared to quickly and effectively decipher <\/span><a href=\"https:\/\/limblecmms.com\/blog\/process-failure-mode-and-effects-analysis-pfmea\/\"><span style=\"font-weight: 400;\">failure modes<\/span><\/a><span style=\"font-weight: 400;\"> and respond to problems<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Technology and condition monitoring devices that can help provide context and shorten troubleshooting processes<\/span><\/li>\n<\/ul>\n<h2><span style=\"font-weight: 400;\">What is MTBF?<\/span><\/h2>\n<p><a href=\"https:\/\/limblecmms.com\/metrics\/mean-time-between-failure\/\"><span style=\"font-weight: 400;\">Mean Time Between Failures or MTBF<\/span><\/a><span style=\"font-weight: 400;\"> is the average time that passes from the end of one repair to the next failure. It tells a team how long a piece of equipment might be expected to run between unplanned breakdowns, and helps them plan for the unexpected.<\/span><\/p>\n<p><span style=\"font-weight: 400;\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-3909 aligncenter\" src=\"https:\/\/limblecmms.com\/wp-content\/uploads\/MTTR-vs-MTBF-vs-MTTF-300x124.jpg\" alt=\"MTTR vs MTBF vs MTTF\" width=\"501\" height=\"207\" srcset=\"https:\/\/limblecmms.com\/wp-content\/uploads\/MTTR-vs-MTBF-vs-MTTF-300x124.jpg 300w, https:\/\/limblecmms.com\/wp-content\/uploads\/MTTR-vs-MTBF-vs-MTTF-1024x422.jpg 1024w, https:\/\/limblecmms.com\/wp-content\/uploads\/MTTR-vs-MTBF-vs-MTTF-768x317.jpg 768w, https:\/\/limblecmms.com\/wp-content\/uploads\/MTTR-vs-MTBF-vs-MTTF-451x186.jpg 451w, https:\/\/limblecmms.com\/wp-content\/uploads\/MTTR-vs-MTBF-vs-MTTF-554x229.jpg 554w, https:\/\/limblecmms.com\/wp-content\/uploads\/MTTR-vs-MTBF-vs-MTTF-93x38.jpg 93w, https:\/\/limblecmms.com\/wp-content\/uploads\/MTTR-vs-MTBF-vs-MTTF-540x223.jpg 540w, https:\/\/limblecmms.com\/wp-content\/uploads\/MTTR-vs-MTBF-vs-MTTF-100x41.jpg 100w, https:\/\/limblecmms.com\/wp-content\/uploads\/MTTR-vs-MTBF-vs-MTTF.jpg 1200w\" sizes=\"auto, (max-width: 501px) 100vw, 501px\" \/><\/span><\/p>\n<p><span style=\"font-weight: 400;\">By having a general idea of how long machines or systems tend to run in between failures, maintenance managers can:\u00a0<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Understand how frequently repairs might be needed<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Coordinate workloads for team members to ensure enough resources are available<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Assess and improve the effectiveness of repairs at keeping systems operational<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Determine the frequency of <\/span><a href=\"https:\/\/limblecmms.com\/blog\/preventive-maintenance-inspection\/\"><span style=\"font-weight: 400;\">preventive maintenance inspections<\/span><\/a><span style=\"font-weight: 400;\"> and maintenance activities that may prevent or stave off failures<\/span><\/li>\n<\/ul>\n<h3><b>Why MTBF is important<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Unlike MTTR, the goal is to ensure an MTBF that is as long as possible. The longer a system or asset goes without a failure, the more it is able to produce. In addition, each asset failure runs the risk of <\/span><a href=\"https:\/\/limblecmms.com\/blog\/oee-six-big-losses\/\"><span style=\"font-weight: 400;\">downtime losses<\/span><\/a><span style=\"font-weight: 400;\">, workplace <\/span><a href=\"https:\/\/limblecmms.com\/blog\/maintenance-incident-reports-ensuring-workplace-safety-and-compliance\/\"><span style=\"font-weight: 400;\">safety incidents<\/span><\/a><span style=\"font-weight: 400;\">, and irreparable damage to equipment. Reducing the frequency of these events dramatically reduces the risks \u2013 and costs &#8212; to the business.\u00a0<\/span><\/p>\n<h3><b>How to calculate MTBF<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">MTBF is calculated by dividing the total operational time in a given period of time, by the total number of failures that occurred in that same period of time. This information can then be segmented based on other data points you have available such as location, asset type, and more.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Taking the example from above, if a specific pump on a production line fails 5 times in one week, and that pump\u2019s total run time that week was 80 hours (or 4,800 minutes), the MTBF for that pump for that particular week is 16 hours (or 960 minutes).\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">MTBF = 4,800 minutes of operational time \/ 5 total failures<\/span><\/p>\n<p><span style=\"font-weight: 400;\">MTBF = 960 minutes<\/span><\/p>\n<p><span style=\"font-weight: 400;\">On average, that pump has failed &#8211; and can be expected to fail &#8211; every 960 minutes.<\/span><span style=\"font-weight: 400;\">\u00a0<\/span><\/p>\n<h3><b>Keys to improving MTBF<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">The primary way to improve \u2013 or increase \u2013 MTBF, is to make sure maintenance processes are as <\/span><i><span style=\"font-weight: 400;\">effective <\/span><\/i><span style=\"font-weight: 400;\">as possible. Keeping assets in good working condition with precise preventive maintenance is key through things like:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Effective and well-executed <\/span><a href=\"https:\/\/limblecmms.com\/strategies\/preventive-maintenance\/\"><span style=\"font-weight: 400;\">preventive maintenance<\/span><\/a><span style=\"font-weight: 400;\"> work\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Using high-quality replacement parts in maintenance and repairs<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Properly training machine operators to ensure optimal operating conditions and input materials<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Take extra care with aging equipment, reviewing asset logs and maintenance histories when performing maintenance work<\/span><\/li>\n<\/ul>\n<h2><span style=\"font-weight: 400;\">What is MTTF?<\/span><\/h2>\n<p><a href=\"https:\/\/limblecmms.com\/metrics\/mean-time-to-failure\/\"><span style=\"font-weight: 400;\">Mean Time To Failure or MTTF<\/span><\/a><span style=\"font-weight: 400;\"> is the average length of time a non-reparable item is expected to last until it needs to be replaced. It represents the lifetime of a single-use product or device, and is calculated by analyzing the performance of a large quantity of that item over a particular period of time.<\/span><\/p>\n<p><span style=\"font-weight: 400;\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-3909 aligncenter\" src=\"https:\/\/limblecmms.com\/wp-content\/uploads\/MTTR-vs-MTBF-vs-MTTF-300x124.jpg\" alt=\"MTTR vs MTBF vs MTTF\" width=\"501\" height=\"207\" srcset=\"https:\/\/limblecmms.com\/wp-content\/uploads\/MTTR-vs-MTBF-vs-MTTF-300x124.jpg 300w, https:\/\/limblecmms.com\/wp-content\/uploads\/MTTR-vs-MTBF-vs-MTTF-1024x422.jpg 1024w, https:\/\/limblecmms.com\/wp-content\/uploads\/MTTR-vs-MTBF-vs-MTTF-768x317.jpg 768w, https:\/\/limblecmms.com\/wp-content\/uploads\/MTTR-vs-MTBF-vs-MTTF-451x186.jpg 451w, https:\/\/limblecmms.com\/wp-content\/uploads\/MTTR-vs-MTBF-vs-MTTF-554x229.jpg 554w, https:\/\/limblecmms.com\/wp-content\/uploads\/MTTR-vs-MTBF-vs-MTTF-93x38.jpg 93w, https:\/\/limblecmms.com\/wp-content\/uploads\/MTTR-vs-MTBF-vs-MTTF-540x223.jpg 540w, https:\/\/limblecmms.com\/wp-content\/uploads\/MTTR-vs-MTBF-vs-MTTF-100x41.jpg 100w, https:\/\/limblecmms.com\/wp-content\/uploads\/MTTR-vs-MTBF-vs-MTTF.jpg 1200w\" sizes=\"auto, (max-width: 501px) 100vw, 501px\" \/><\/span><\/p>\n<p><span style=\"font-weight: 400;\">By having a high-level overview of how long a non-repairable system component is expected to last, maintenance managers can:\u00a0<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Plan <\/span><a href=\"https:\/\/limblecmms.com\/cmms\/spare-parts-inventory-software\/\"><span style=\"font-weight: 400;\">spare parts inventory<\/span><\/a><span style=\"font-weight: 400;\"> with greater accuracy<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Evaluate parts makers and vendors based on the quality or reliability of their parts<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Predict and prevent larger system failures based on the MTTF of their non-repairable components<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Plan <\/span><a href=\"https:\/\/limblecmms.com\/blog\/repair-or-replace-analysis\/\"><span style=\"font-weight: 400;\">replacements<\/span><\/a><span style=\"font-weight: 400;\"> and other preventive actions with greater accuracy<\/span><\/li>\n<\/ul>\n<h3><b>Why MTTF is important<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Similar to MTBF, steps should be taken to ensure MTTF is as long as possible in order to prolong and maximize production time. Doing so ensures higher output, and minimizes risks associated with frequent failures like workplace safety incidents, and irreparable damage to equipment.\u00a0<\/span><\/p>\n<h3><b>How to calculate MTTF<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">MTTF is calculated by dividing the total operation time in a given period of time, by the total number of items used in that same period. Again, this information can then be segmented based on other data points you have available such as item type, purpose, or manufacturer.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">For instance, if the pump from our previous example ran for 80 hours (or 4,800 minutes), but a specific gasket on the pump had to be replaced 2 times in that same period, the MTTF for that gasket is 40 hours (or 2,400 minutes).\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">MTTF = 4,800 minutes of operating time \/ 2 total gaskets<\/span><\/p>\n<p><span style=\"font-weight: 400;\">MTTF = 2,400 minutes<\/span><\/p>\n<p><span style=\"font-weight: 400;\">This calculation provides a general idea of the longevity that can be expected of different kinds of consumable or non-repairable items. In this case, if a more expensive gasket from a different manufacturer has an MTTF that is twice as long, a maintenance manager can now evaluate whether or not the additional cost is worth the improved MTTF.<\/span><\/p>\n<h3><b>Keys to improving MTTF<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Because these are non-repairable items, the steps your maintenance team can take to extend their MTTF are minimal. The primary way to improve \u2013 or increase \u2013 MTTF, is in how these kinds of items are chosen and used.\u00a0\u00a0<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Pay attention to item quality when sourcing non-repairable components<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Ensure proper preventive maintenance on the larger assets where these non-repairable items are installed<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Ensure that these non-repairable items are installed, stored, and used properly and within <\/span><a href=\"https:\/\/limblecmms.com\/blog\/oem-original-equipment-manufacturer\/\"><span style=\"font-weight: 400;\">OEM parameters<\/span><\/a><\/li>\n<\/ul>\n<h2><span style=\"font-weight: 400;\">More failure metrics<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">There are a number of other failure metrics that can help provide context to your maintenance practices. MTTF, MTTR, and MTBF may be three of the most common, but organizations should consider others to gain a broader picture of their maintenance operations, such as:\u00a0<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>MDT (Mean Down Time): <\/b><span style=\"font-weight: 400;\">The average time a system or asset remains down once a failure has occurred.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b><a href=\"https:\/\/limblecmms.com\/metrics\/mean-time-to-detect\/\">MTTD (Mean Time to Detect)<\/a>:<\/b><span style=\"font-weight: 400;\"> The average time it takes machine operators or other personnel to detect and report a failure.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>MTTA (Mean Time to Acknowledge):<\/b><span style=\"font-weight: 400;\"> The average response time by the maintenance team, once a failure occurs.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>MTTI (Mean Time to Identify): <\/b><span style=\"font-weight: 400;\">The average time it takes your team to identify the <\/span><a href=\"https:\/\/limblecmms.com\/maintenance-definitions\/root-cause-analysis\/\"><span style=\"font-weight: 400;\">root cause<\/span><\/a><span style=\"font-weight: 400;\"> of a failure so they can begin a repair.\u00a0<\/span><\/li>\n<\/ul>\n<h2><span style=\"font-weight: 400;\">Choosing (and using) the right failure metrics\u00a0<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">While each failure metric provides its own benefits, the real insights come from applying multiple failure metrics to your maintenance operations. By monitoring and working to improve all three (or more) failure metrics, organizations let the data point to the biggest opportunities for improvement.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">If tracking multiple failure metrics sounds complicated, numerous solutions exist to streamline the process. 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