Technology Insertion (TI)/Industrial Process Improvement (IP) Task Order Number 15. Contract Summary Report/Quick Fix Plan for SA-ALC/MAE and MAT (Gas Turbine Engine).
Summary rept. Jun-Dec 90.
MCDONNELL DOUGLAS MISSILE SYSTEMS CO ST LOUIS MO
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A Universal Depot Overhaul Simulator UDOS 2.0 model of the repair process for the -180 and -398 Gas Turbine Engines GTEs was constructed and a detailed engineering assessment of the repair process was conducted. As a result, MDMSC recommended three process improvements were recommended as Quick Fixes QFs with a savings potential of 2,242,130. It was also recommended that two focus studies with potential annual savings realized by establishing a Just In Time flow in the GTE repair process and developing a Statistical Process Control program to reduce rework. These focus studies will require additional SA-ALC manhour expenditures to complete. The computerized simulation model was completed on schedule and was used to quantify results. Assessment of the GTE repair process revealed that 96 of a GTEs flow time is spent in non-productive delays. No resource constraints were discovered to account for this and the problem appears to be one of scheduling rather than capacity. The GTE community is currently experiencing high failurerework rates 24 for FY90 at the final test operation, as well as lower than expected field lives. This problem is attributable to both the GTE repair process itself and to the obsolete and extremely variation-sensitive design of the two GTEs studied.
- Manufacturing and Industrial Engineering and Control of Production Systems
- Jet and Gas Turbine Engines