Presenter: Tim Beadle This document does not contain any export regulated technical data Agenda Investigation Weakness Actions • • Corrective Preventative Evidence • • Objective Evidence Measures of Effectiveness Key Points Summary Questions P&W Proprietary This page does not contain any export regulated technical data 2 DIVE PROCESS Define problem Investigate process Verify solution Ensure improvement UTC Interactive RRCA Tool P&W Proprietary This page does not contain any export regulated technical data 3 RRCA CAPA The true success of any Root Cause investigation is dependent on the actions taken and their effectiveness. P&W Proprietary This page does not contain any export regulated technical data 4 Governing Procedures AS9100 - Quality Management Systems Requirements for Aviation, Space and Defense Organizations is the basis for these actions. AS13000 - Problem Solving Requirements for Suppliers Supported by: – – – WP 8.1 Internal Audit PW 1.1.2. Corrective Actions PW 1.1.3. Processes for Addressing Enterprise Risks and Opportunities P&W Proprietary This page does not contain any export regulated technical data 5 RRCA CAPA • Corrective Action (CA) - Definition Action taken to eliminate the cause of a detected nonconformity or other undesirable situation to prevent recurrence (adapted for ISO 9000:2005). Examples: • Replacing failed hardware • Repairing a Milling Machine SAE Definition: Corrective Action P&W Proprietary This page does not contain any export regulated technical data 6 RRCA CAPA • Preven[ta]tive* Action (PA) - Definition Action to eliminate the cause of a potential nonconformity or other undesirable potential situation (see ISO 9000). Examples: • Updating Design Procedures • Changing Software Code SAE Definition: Preventative Action *SAE uses Preventive, Pratt uses Preventive P&W Proprietary This page does not contain any export regulated technical data 7 Key Points - Actions When developing actions… – What specific action is being done? – What conditions will it be done under? – Why is the action being taken? – How will the action be taken? P&W Proprietary This page does not contain any export regulated technical data 8 Key Points - Actions Words Matter… Active verbs - describes things that can be demonstrated instead of explained - work rather than a state of being x Adequate x Support x Consider x Review x Investigate Measureable nouns - signifies things that are tangible and concrete x Confidence x Motivation x Communication x Opportunity P&W Proprietary This page does not contain any export regulated technical data 9 CAPA Examples PN/ Description Specific Actin for correction. Actionee Corrective / Preventative Action Due Date What prevents future seal misassembles? Issue Description Is there a design practice change needed? 5321000-01, ENGINE ASSY-TURBOFAN 90C30G3578 / CASE HALFHPC,UPPER CASTING FDC #1 bearing carbon seal mis assembly B/P Violation “Assist” is weak. What specifically will be done? How will completion be shown? Class I EC to add markings on the seal plate denoting orientation of face. Martin, Julia 10/31/2018 Assisted defect recognition on x-ray DDA technology 1/31/2019 Day, Jane LLEM 265: Parts meet all b/p requirements, but do not meet design “Robust” is vague. Inspection only intent for durability and life. Root cause contained to plant 5 discovers the problem and 5322121 / Compressor Fan Blade Develop more robust PAA inspection replacement corrects it. 12/15/2018 Smith, Joseph produced hardware only, per engineering test results. Flight safety Assembly method What prevents design shortfall? recommends field action to remove and replace. .064-.098 CR has surface variation. 30G5908 / COMPRESSOR ROTOR AXIAL, HIGH PRESSURE, 8th STAGE “Adequate” is weak. How does the process need to change? How will implementation be shown? Implement into process plan EC to allow for adequate transition method. 11/15/2018 Doe, John P&W Proprietary This page does not contain any export regulated technical data 10 Corrective vs. Preventive • Corrective vs. Preventive can depend on your view point. – Preventive action is taken to prevent occurrence whereas corrective action is taken to prevent recurrence. [9136] Released Hardware Corrective Preventative Replacing effected Replacing effected Replace Hardware due to Field Event Hardware before a Field Event Changing Hardware Design Changing Hardware Design Design to address a Field Event before a Field Event Changing Hardware Design Approach Approach is always Preventative P&W Proprietary This page does not contain any export regulated technical data 11 RRCA CAPA • Objective Evidence- Definition Unbiased, factual data supporting the existence or verity of something. Objective evidence may be obtained through observation, measurement, test, or other means. [9162] Examples: • Signed training agendas • Test Logs/Reports • Published Procedures/Instructions Trust me SAE Definition: Objective Evidence P&W Proprietary This page does not contain any export regulated technical data 12 RRCA CAPA • Measure of Effectiveness (MOE) - Definition Predefined Method to assess the impact of implemented actions on an issue. • MOE can be specific to a particular issue • • • • Control Charts Inspection results Trend Charts Elephant Charts Turnbacks Examples: TARGETED TURNBACK TREND ANALYSIS P&W Proprietary This page does not contain any export regulated technical data 13 Key Points - Evidence When creating actions… – – – – – Is the action is implementable? How will the action be proven to have worked? What is the timeframe for the action to take effect? Can the impact of the action be measured? Is the action changing behavior? P&W Proprietary This page does not contain any export regulated technical data 14 Summary Actions • Define specific, active, implementable actions • Identify both corrective and preventative actions Evidence • Collect objective evidence to prove action implementation and effectiveness • Define a measure of effectiveness that suits the action P&W Proprietary This page does not contain any export regulated technical data 15 Questions P&W Proprietary This page does not contain any export regulated technical data 16 P&W Proprietary This page does not contain any export regulated technical data
