Lee (1980) presents a dataset containing the times (in thousands of operating hours) of unscheduled maintenance actions on the number 4 diesel engine of the U.S.S. Grampus. The data contain observations of maintenance actions for the first 16,000 hours of operation. The observations in this dataset should be treated as is they were observed from a single system, since information as to which component in the engine failed was not included. The unscheduled maintenance actions were caused by either system failures or by events that indicated that a system failure was imminent. Such maintenance actions are inconvenient and expensive.
A data.frame
with 57 rows and 3 variables:
[, 1] | unit | Unit type | Categoric |
[, 2] | kilohours | Accumulated hours at event (in thousands) | Numeric |
[, 3] | event | Event observed at khours (Repair/End) | Categoric |
Lee, L. (1980) Testing adequacy of the Weibull and loglinear rate models for a Poisson Process, Technometrics, 22, 195-199
Ascher, H. and Feingold, H. (1984), Repairable Systems Reliability, New York, NY; Marcel Dekker
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