Failure Mode and Effect Analysis (FMEA) and Failure Modes, Effects and Criticality Analysis (FMECA)
What Are FMEA and FMECA?
FMEA and FMECA are methodologies developed to identify potential failure modes for a product or process, to assess the risk associated with those failure modes, to rank the issues in terms of importance and to identify and carry out corrective actions to address the most serious concerns.
Although the purpose, terminology and other details can vary according to application, the basic methodology is similar for all. There are software tools to assist with complex applications but the basics remain the same and can be achieved in a basic spreadsheet template.
Typical Applications & Benefits
The FMEA/FMECA procedure is a tool that has been developed for a variety of different purposes. It can improve designs for products and processes, resulting in higher reliability, improved quality, increased safety, enhanced customer satisfaction and reduced costs.
It can also be used to establish and optimise maintenance plans for repairable systems and/or contribute to control plans and other quality assurance procedures.
It provides a knowledge base of failure mode and corrective action information that can be used as a resource in future troubleshooting efforts and as a training tool for new engineers.
In addition, an FMEA or FMECA is often required to comply with safety and quality requirements, such as ISO 9001, QS 9000, ISO/TS 16949, Six Sigma etc.
A J S Support Limited have been FMECA and Reliability Centred Maintenance (RCM) practitioners for almost 20 years now. Our FMECA experience is predominantly in aviation both manned Defence systems, and more recently in Commercial Remotely Piloted Aircraft Systems (RPAS) or Drones as they are more commonly referred to as.
Commercial Drone Applications
We are supporting customers that want to stretch the operational boundaries of commercial drone use and require evidence to prove that they understand the system, its operating profile, the operating environment, the potential failures and subsequent hazards; and can manage the resultant risks by training, maintenance or adjustments to operating procedures. This is presented as part of the evidence underpinning an Operating Safety Case (OSC) presented in support of a UK CAA Permission For Commercial Operation (PFCO) for larger aircraft and nonstandard exemptions. See Figure 1 below.
AJSSL Tailored Product – FMECA Report
AJSSL undertake FMECA work on all systems requested. The deliverable is an output report from our company. An AJSSL FMECA report output will typically follow the following document structure:
3 Why This Failure Modes Effect & Criticality Analysis?
5 RPAS System Description
6 Our FMECA Rules and Assumptions
7 Results Summary – System Type FMECA
8 Key Observations – System Type FMECA Results
9 Lessons Learnt – Other Operators
10 Lessons Learnt – Operator Trials
ANNEX A – FAILURE MODES
ANNEX B – TYPICAL ERRORS FOR CONSIDERATION
ANNEX C – MONITORING AND MAINTENANCE RECOMMENDATIONS
ANNEX D – CRITICAL SINGLE POINT FAILURES SUMMARY
On receipt of this report from AJSSL the operator will have an independent analysis that will provide them with a better understanding of the system being operated, its potential failures and the operational effects. The report will make recommendations for training, maintenance and procedural activities to mitigate / manage the potential failures and subsequent hazards.
This report provides the underpinning evidence to support the PFCO OSC across Volumes 1 – 3 including identification of single point failures and recommendations to mitigate the risks.
We are experienced FMECA practitioners and can develop and deliver independent analysis and reports in a cost effective manner. We now have FMECA Reports “Off The Shelf” for the more popular systems on the Market. This is the cost effective way of underpinning your OSC using an independent practitioner report to inform your procedures, training and maintenance.
Contact us to find out how this may assist you and to understand the benefits of FMECA evidence.
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