PHP-Instruments & Accessories ??? PHP-IA (www.heliparts.com); Precision Aero Technology ???PAT (www.precisionaerotechnology.com) and Precision Aviation Group Australia PTY LTD ??? PHP-AU. PAG subsidiaries have MRO capabilities on over 21,000 products, including Accessories, Avionics, Hydraulics, Instruments, NDT, Starter/Generators, and Wheels/Brakes ??? (www.precisionaviationgroup.com).