Aircraft Turbine Engine Monitoring Systems: Overview and Lessons Learned from Six Case Studies
RAND CORP SANTA MONICA CA
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This paper reviews the experience gained from several aircraft turbine engine monitoring systems used over the last decade and a half and examines the implications of that experience for recently proposed monitoring systems. Two different approaches to engine monitoring have evolved in attempts to achieve the goals of improved engine operations, maintenance, and management coupled with reduced maintenance costs. The first approach concentrates on day- to-day operations and maintenance concerns and is usually accomplished by recording a few seconds of engine usage data either at predefined performance windows or when certain engine operating limits are exceeded. The second approach focuses on long-term, design-oriented benefits that are gained through improved knowledge of the overall engine operating environment. Much uncertainty still exists about the benefits and cost attributable to engine monitoring systems. We believe that the estimated maintenance cost savings most often used to justify new monitoring system are unlikely to materialize over the short term.
- Jet and Gas Turbine Engines