If you see a low-flowing blue and yellow helicopter this week, don’t be alarmed – it’s probably a crew from National Grid. The utility says they will be conducting helicopter visual patrols of its entire transmission system along statewide rights-of-way. The visual survey is expected to last three weeks depending on good weather. The licensed vendor, JBI, will be flying a blue and yellow helicopter at patrol speeds with a brief hover over transmission structures that may require maintenance work.
