And yep 5 incident free years
May be for KAL but the problems still exist in that part of the world as the incident at NZAA at the end of 2004 proves. But for the watchfullness of the work party foreman the results would have been disastrous, at least for those on the ground.
See here for report
http://www2.taic.org.nz/InvDetail/04-006.aspx