Considerations presented by Steve Bentley www.sassofia.com
Sofema Aviation Services currently offers 10 different reliability related training courses – Organisations which focus on and employ the data generated by the reliability program in the most effective way see a real and meaningful return on the investment.
Understanding the reason for Scheduled Maintenance
The feasibility and cost effectiveness of scheduled maintenance depend on the inspectablility of the component, and the cost of corrective maintenance depends on its failure modes and design reliability.
a) Whilst the design reliability of equipment or components can be ensured with an effective maintenance program. We are not able to exceed the level of reliability which has been established by the design of each component and the manufacturing processes that produced it.
b) We should understand that whilst scheduled maintenance can ensure that design reliability of each component is achieved, maintenance activity alone cannot yield a level of reliability beyond the design reliability.
c) When a maintenance program is developed, it includes tasks that satisfy the criteria for both applicability and effectiveness. The applicability of a task is determined by the characteristics of the component or equipment to be maintained.
d) The effectiveness is stated in terms of the consequences that the task is designed to prevent.
What Tasks are available?
The basics types of tasks that are performed by maintenance personnel are each applicable under a unique set of conditions. Tasks may be directed at preventing functional failures or preventing a failure event consisting of the sequential occurrence of two or more independent failures which may have consequences that would not be produced by any of the failures occurring separately.
The task types include:
a) Inspections of an item to find and correct any potential failures;
b) Rework/remanufacture/overhaul of an item at or before some specified time or age limit;
c) Discard of an item (or parts of it) at or before some specified life limit; and
d) Failure finding inspections of a hidden-function item to find and correct functional failures that have already occurred but were not evident to the operating crew.
What to do with Reliability Data?
a) The information processed is used to identify failure trends on fleets, and in so doing to develop corrective actions to ensure they can continue to operate in a safe, punctual, reliable and efficient manner.
b) This is typically achieved through the continued airworthiness management processes in place within the Reliability and Engineering departments, and observing compliance with the company Continued Airworthiness Management Exposition and applicable regulations.
For details regarding the availability of different reliability training courses including working with mathematical analysis processes please see the following https://sassofia.com/regulatory-training-courses/
For additional information or to answer any questions please email office@sassofia.com
