EXPERT OPINIONS: Factory acceptance test, damage assessment, commissioning test, warranty test, periodical inspections, expert opinions on rotor blades, condition monitoring test for gears and drive trains. SERVICES: Gearbox video endoscopy, measurement of tower tilt and settling, assessment of lightning protection and earth, coating thickness readings, non-contact temperature monitoring, electrostethoscopy, rotor blade repair using rope access (lightning receptors, vortex generators, stall stripes, rotor blade damage), flange repairs, tower coatings.