Combat Propulsion Systems SR000XXXXX Supplier Name Month Year.
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Transcript of Combat Propulsion Systems SR000XXXXX Supplier Name Month Year.
Combat Propulsion Systems
SR000XXXXX
Supplier Name
Month Year
pg. 2
Combat Propulsion Systems
Agenda
Breaking it down…
1. Discuss the problem statement in seller’s terms
2. Root cause of the problem
3. Potential corrective actions
4. Potential methods to mistake proof from recurrence
pg. 3
Combat Propulsion Systems
Problem
Discrepancy Details:Interface ring on pedestals are over tolerance and oblong causing an interference during assembly of
the reflector to the pedestal. The measurements should be 10.38 +/- .03. Actual measurements received from the vendor show that the x-axis measurements on all of the pedestals are greater than 10.43 and y-axis measurements all exceed 10.45.
SCAR Description:Pedestals are being received with the interface ring over tolerance and oblong.
Problem:
A good problem statement should include the following:
1. Description of defect- What is the perceived problem?
2. Time frame- When does it occur? For how long?
3. Extent- Frequency of problem and how does actual performance differ from expectation?
4. Conditions- Where does problem occur?
5. Impact- Financial and performance impact?
pg. 4
Combat Propulsion Systems
Definitions
Correction
An action taken to eliminate an identified nonconformity.
Corrective Action (CA)
Action to eliminate the cause of a detected nonconformity or other undesirable situation.
Preventive Action (PA)
Action to eliminate the cause of a potential nonconformity or other undesirable situation.
Preventive vs. Corrective Action
Preventive action is action to prevent the occurrence of a potential nonconformance. Corrective Action is action taken to prevent recurrence of a known nonconformance.
pg. 5
Combat Propulsion Systems
Definitions
Direct Causes (DC)
The events or actions that directly result in the undesired condition or nonconformance (aka “proximate causes”).
Contributing Causes (CC)
Causes that link the root causes to the direct causes. There are typically several contributing causes linked between the root causes and direct causes.
pg. 6
Combat Propulsion Systems
Root Cause
Tools
1. 5 Why’s (asking ‘Why is that?’)
2. Fishbone diagram for more complex issues
Example:
3. Interface ring on pedestals are over tolerance and oblong causing an interference during assembly of the reflector to the pedestal – Why is that?
Fishbone diagram and 5 why’s templates can be downloaded from the L-3 Quality site located here: http://www2.l-3com.com/cps/quality.html
pg. 7
Combat Propulsion Systems
Root Cause
Symptoms of the Problem (obvious), Root cause (not obvious)
• Direct causes-
• Contributing causes-
pg. 8
Combat Propulsion Systems
Corrective Action (not correction)
• What can eliminate the cause of the detected (past) nonconformity?
pg. 9
Combat Propulsion Systems
Preventive Action
• What can eliminate the cause of the potential nonconformity?
