Random effects model for the reliability management of modules of a fighter aircraft

So Young Sohn, Kyung Bok Yoon, In Sang Chang

Research output: Contribution to journalArticle

11 Citations (Scopus)


The operational availability of fighter aircrafts plays an important role in the national defense. Low operational availability of fighter aircrafts can cause many problems and ROKA (Republic of Korea Airforce) needs proper strategies to improve the current practice of reliability management by accurately forecasting both MTBF (mean time between failure) and MTTR (mean time to repair). In this paper, we develop a random effects model to forecast both MTBF and MTTR of installed modules of fighter aircrafts based on their characteristics and operational conditions. Advantage of using such a random effects model is the ability of accommodating not only the individual characteristics of each module and operational conditions but also the uncertainty caused by random error that cannot be explained by them. Our study is expected to contribute to ROKA in improving operational availability of fighter aircrafts and establishing effective logistics management.

Original languageEnglish
Pages (from-to)433-437
Number of pages5
JournalReliability Engineering and System Safety
Issue number4
Publication statusPublished - 2006 Apr


All Science Journal Classification (ASJC) codes

  • Safety, Risk, Reliability and Quality
  • Industrial and Manufacturing Engineering

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