The 1986 crash of the space shuttle Challenger was linked to failure of O-ring seals in the rocket engines. Data was collected on the 23 previous shuttle missions. The launch temperature on the day of the crash was 31F.
data(orings)A data frame with 23 observations on the following 2 variables.
temperature at launch in degrees F
number of damage incidents out of 6 possible
S. Dalal, E. Fowlkes and B. Hoadley (1989) "Risk Analysis of the Space Shuttle: Pre-Challenger Prediction of Failure." Journal of the American Statistical Association. 84: 945-957.