nostr:npub1fzl62au2n3z78famxg433zkxkms9ald5qew9fzvsk5gcfzus5vzqgeu422 
I was in maintenance for almost 40 years. At one time, my title was Manager of Maintenance and I covered all the states west of the Mississippi River. 
Things have changed in the last 15 years or so. I blame how engineers are educated. The Just in Time warehousing, efficiency planning, cost benefit analysis  - all designed to maximize near term profits. It was one of my motivations for early retirement. Maintenance of critical equipment requires a different thought process.