Helicopter Sikorsky S-55 Serial 55-728 Register CF-MYV N735A used by PHI Inc. Built 1954. Aircraft history and location Aircraft History N735A PHI Inc 1954-06-23Sikorsky S-55 c/n 55-728, ff:? del PHI as N735A, 23Jun54. CF-MYV - S-55T CF-MYV Send Updates Use APP to upload photo @ (optional) When Now? / / Send