http://tdworld.com/mag/power_helicopters_clean_sweep/
Company: Aerial Solutions, Inc.
City: Wilmington State/Province: North Carolina Country: USA
Specialty: Line Clearance, Right-of-way, Aerial Side Trimming. ASI provides Helicopter based Side Trimming for Utility Power line, Pipeline and Railroads. Our Unique, patented Air Saw provides a fast, cost-effective option for R/W Side Trimming in all types of terrain.
Phone: 800.354.7074 Fax: 910.798.6222
Geographic Area: USA and Canada
They have been in business for many years, at least 14 that I know of. I was in Louisiana and they done some work for Gulf States Utilities in the Atchafalaya Swamp when I was there.
It is a cost effective way to do the necessary work. Some would say, and have made mention here about "Proper Cuts". It is in remote areas that this work is done and doing "Proper Methods" would more than quadruple the cost vs. aerial trimming. Even if the trimming was done by conventional methods it would still be stub cut by a Jaraffe trimmer and still cost double due to the limitations of terrain and accessibility.