Helijet – Sikorsky S-76C – Multiple Emergency Indicators

C-GIHJ, a Sikorsky S-76C helicopter operated by Helijet International, was conducting a flight from Vancouver Intl, BC (CYVR). During cruise flight, the transmission gearbox chip/hot annunciator light illuminated. The flight crew reviewed the checklist and, while locating the affected system circuit breaker to reset, they noticed the number 1 hydraulic servo jam circuit breaker had popped.
The chip light extinguished once reset, however due to multiple unrelated malfunction indications, the flight crew declared an emergency and elected to return to CYVR where the helicopter landed without further incident.
The operator’s maintenance found chaffed electrical wires, and proceeded to replace them.