Maintenability. What is MTTR? How its optimitzation will run?

One of the great trends in RAMS Engineering is the search for strategies to optimize maintenance procedures. That is, improve maintainability of the systems and, therefore, reduce MTTR (Mean Time to Repair), leading to an improvement in system availability: If the system once broken down is fixed and put back into service before, availability will automatically increase.

In Leedeo Engineering, we use to apply the following decalogue of strategies for improving maintenance:

10 basic rules to improve maintenance

1. Ensure correct documentation in its content and being accessible where necessary. Troubleshooting orientation with root cause tree schemes
2. Is it possible or is it planned in the design phase to provide preventive and corrective maintenance during operation (hot swap)?
3. Is it possible or have you thought about enabling anticipation strategies or to predict at an early stage the possibility of a failure (predictive maintenance)?
4. Is it possible or have you thought about an easy commissioning after a maintenance action?
5. Is it possible or have you thought about an easy replacement of equipment?
6. Is it possible or have you thought about reducing maintenance crew's competences?
7. Have you thought about proper stock planning?
8. Is it possible or have you thought about facilitating fault location (diagnostic assistance system)? How many levels?
9. Is it possible or have you thought about hot-standby redundancy strategies to give the possibility of delaying repairs?
10. What are the acceptable degraded modes in operation established by the system?

At Leedeo Engineering we are specialists in maintenance engineering and maintainability. We support our customers from the drafting of maintenance manuals and commissioning to the review of product designs to improve maintainability.