update:

transpower has released the investigation report on their FB page. report here

interesting that a fair bit of what they have said in public has been not quite true. 

Neither Transpower’s specifications nor its drawings for baseplate
refurbishment specify how many nuts are to be removed from the baseplate at
the same time or in what order, during refurbishment. That detail is left to the
contractor’s procedure and judgement, 

The Omexom written procedure that applied to the baseplate refurbishment
work at Tower 130 does not specify how many nuts are to be removed from the
baseplate at the same time or the order of removal saying only “remove hold
down nuts and washers.”

 At Tower 130, the Team Leader was engaged in sandblasting work while a
relatively inexperienced team member was assigned the task of removing nuts
from tower foundation legs, as the sandblasting work moved from leg to leg.
During this work the team member removed nuts above the baseplate from
three tower legs.

These actions did not comply with Transpower’s specifications
and service standards and did not meet standards of ‘good industry practice’.

The team member who removed the nuts from the foundation legs was not
adequately trained to perform the task and was not adequately supervised
while performing the task.

notice the double standard. does not comply with transpower standard, yet transpower does not have a standard for that action and neither does omexom.

edit: i also notice no mention of drug testing results. was that even done?