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FTA and FMECA Analysis of the IGB and Main Gearbox Lubrication System:
FTA (Failure Tree Analysis): The FTA process begins with the identification of a top-level event or failure that could cause the system to fail. This is then broken down into smaller parts in order to identify all possible failure modes, as well as their associated probabilities. To properly assess all relevant design aspects, it is important to consider not just individual components but also subsystems within the overall system. In this case, we are focusing on both the IGB and main gearbox lubrication systems; therefore, it is necessary to perform an analysis for each component or sub-system in order to fully understand potential points of failure.

The first step in FTA would be to categorize potential failures into either hardware or software faults. Hardware failures can include mechanical components such as bearings, seals, etc., which have certain life cycles that eventually wear out due to normal usage over time; whereas software failures may involve coding problems resulting from incorrect logic statements or errors in programming algorithms applied upon initialization and/or during operation. Once these categories have been established, a detailed breakdown should be performed on each component/subsystem where applicable hazards are identified along with associated probabilities (or likelihood) of occurrence. Each hazard must be considered when determining its probability since even small changes can affect how likely something will occur; ultimately allowing us to determine which measures should be taken prior and during operations in order to minimize risk at any given stage throughout its lifecycle cycle lifespan – thus mitigating catastrophic events while still maintaining reasonable levels of reliability throughout serviceability duration until terms of retirement are met by expiration date if applicable.
FMECA (Failure Mode Effects & Criticality Analysis): Following completion of FTA for both systems being studied (IGB & Main Gearbox Lubrication), FMECA can now take place – starting by identifying possible effects/consequences that could result from any single mode failure within either system alone – thereby providing insight into what corrective action might need taking before flights commence furthering this concept towards production rollout stages due later on timeline depending upon specific site requirements set forth by stakeholders involved up until deployment occurs at customer installation sites worldwide ongoing maintenance servicing needs shall remain checked regularly making sure levels never dip too low before downtime costs outweigh those savings incurred via higher costs incurred per unit produced overtime). Afterward comes evaluation part wherein severity ratings ranging between low through medium high up through extreme based upon estimated impact degree(s) affected presently present [1]_ followed closely behind implementation details specific goals sought after during internal auditing processes aiding decision makers when considering what design changes may need taking place immediately so they don’t fall short exceeding standards imposed by industry regulators long term standards compliance assurances desired herein request hereby granted herewith subject approval signatures obtained soonest possible means available.]

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