The company is considered to be an industry leader in maintenance, technology, and overall operations. The overhaul and maintenance facility based in Lafayette, Louisiana is considered by many to be the premier facility in the world because of its technology and experienced staff. PHI employees conduct routine maintenance and repair work; completely overhaul engines and airframes; operate a state-of-the-art painting facility; study and engineer new parts and lubricants; research new procedures and develop new techniques.