B767-300 and 300 ER
Flight Crew Air Transport Pilot (ATP)
Other / Unknown
Aircraft Equipment Problem Less Severe; Deviation / Discrepancy - Procedural Published Material / Policy
Flight Crew Overcame Equipment Problem
Human Factors; Aircraft
PF on my first leg . I had just met the Captain and IRO since they operated in from ZZZ and I met them at the aircraft.  At cruise as the PF; the Captain noticed the ACARS had stopped functioning correctly.  He was concerned that we needed the ACARS and tried to look for relief in the Systems Manual; QRH and contacted Maintenance Control.  They gave no direction as to how to remedy the ACARS.  Being new to the aircraft; I had no ideas as to how to get the ACARS back in to a working condition.  The Captain and IRO discussed the matter and then the Captain decided to use his 'Captain's Authority' to reset a circuit breaker for the ACARS system.  As the PF; I mainly concentrated on aircraft control as the Captain and IRO discussed the problem.  The Captain was concerned about deteriorating weather conditions at destination and felt he needed the ACARS operable for the duration of the flight.  This action remedied the ACARS; but may have been against company procedure.
B767-300 First Officer describes the Captain resetting an ACARS circuit breaker to get the system functioning again and believes the act may have been in violation of company procedures.