high-time

high-time (comparative higher-time, superlative highest-time)

1. (mechanical engineering, especially aviation, of a vehicle or mechanical component) Having been in use for a (relatively) long time or a large number of operating cycles; nearing retirement or replacement age.
   • 2002 March 13, National Transportation Safety Board, “767 Bellcrank Anomalies”, in Aircraft Accident Brief: EgyptAir Flight 990, Boeing 767-366ER, SU-GAP, 60 Miles South of Nantucket, Massachusetts, October 31, 1999‎^[1], archived from the original on 11 May 2022, page 18:

     Boeing and the FAA conducted additional tests and research to further investigate why the rivets failed and what the possible repercussions of such a failure would be, including metallurgical examination of high-time bellcranks, material properties testing on old and new bellcranks, review of bellcrank failure rate data obtained from 767 operators, and examination of maintenance procedures to determine whether changes in procedures and/or intervals were warranted. The Safety Board monitored the FAA's and Boeing's tests and research into the bellcrank shear rivet failures.