[dvduval]

Right, and it also outlines how records were not kept up-to-date. I would be interested to know what has happened since then. What type of records are being kept now? it seems likely that with today's technology we can use something to keep an eye on these things without sending people in as often too. Perhaps we can use cameras or drones.

[woliveirajr]

There is a project from my former professor (?) and electrical company: use drones + cameras with specific filters to capture variation of temperature, wear and debris in towers.