Lean Six Sigma Group Free Project Case Study Overviews http://www.linkedin.com/groups/Lean-Six-Sigma-37987
Sponsored by the International Standard for Lean Six Sigma, e-Zsigma http://www.e-zsigma.com, IQPC, and PEX Network.
Please contact Lean Six Sigma Master Black Belt, Steven Bonacorsi, Owner of the Lean Six Sigma Group to have your project case studies to be added to the Lean Six Sigma Group Library. Steve Bonacorsi sbonacorsi@comcast.net
1. Six Sigma DMAIC Project
GEAE Account: Madisonville, KY Site
Project Leader/Green Belt: Keri Chandler
Project Leader Title: Customer Engineer, Certified Green Belt
Project Start Date: June 7, 2002
Master Black Belt: Steven Bonacorsi
2. Six Sigma in Action
Local Asset Inventory Cycle Time
Customer Profile – 18,000-Seat Aircraft Engines Manufacturing and Service Company
Business Problem & Impact Process Capability – Before
Madisonville does not have an easy way to track inventory. Thus
USL = 60 seconds
when information is needed, someone must physically establish
Mean = 96.5
equipment location.
StDev = 54.6
Measure & Analyze Z_ST = 0.8
Data Collection: Validated repeatability and reproducibility using
A stop watch. Collected 200 data points to see how long it takes
to inventory equipment.
Root Causes/Sources of Variation: Human error with the
manual recording of data.
Improve & Control Process Capability – After
• Simulated pilots tests were run for each scanner type and
USL = 60 sec
repeated by two technicians to evaluate the best cycle time and
Mean = 29.5
functionality.
StDev = 11.2
• Improved the accuracy with scanned asset details with the
removal of manually recording multiple entries. Z_ST = 4.3
Results/Benefits
• Digitized technology decreased cycle time to < 1 minute
• Benchmarked scanner cycle times, Improving process from
96.5 to 29.5 seconds, to meet customer CTQ <= 60 seconds!
A Total Savings of US $2,240