Track 1 Session 7

1:00 to 2:00 p.m. Thursday March 24, 2011

Recurrent Event Analysis: How to Detect Failed Maintenance Actions Among Failure Events Based on Data Exploration Experience

Service life databases are established to record important events of machine life: operation, forced and planned maintenance, upgrades and modifications. Typically, the data are used to calculate reliability and maintainability (RAM) analysis parameters: failure rate, availability and others. However, some events classified as failures are, in fact, consequent attempts to eliminate the same root cause. Taking them into consideration can lead to an overestimation of the failure rate. This presentation shows how to detect, define and filter out this phenomenon.

Key Words: Recurrent Event Analysis

Marek MikoĊ‚ajewski

GE Oil & Gas