Helicopter Sikorsky S-76C Serial 760484 Register JA6904 used by Kaijō Hoan-chō JPCG (Japanese Coast Guard). Aircraft history and location Aircraft History JA6904 Kaijō Hoan-chō 1998-10S-76C+ type Coast Guard /MH904 from Oct98 Send Updates Use APP to upload photo @ (optional) When Now? / / Send