AC 120-80 gives awesome guidance on this. Sorry I didn't complete a more thorough internet search before posting.

Recently had a wing root light CB popping on one of our FA20's (reset it only once per flight). Was flying with a very experienced (I'd say how experienced, but it'd give him away) aircraft commander and neither one of us thought twice about resetting it.

Never underestimate the knowledge gained from hangar flying with some of the old hands over cold beer on a warm summer evening when the day's flying is done.


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a. Resetting Circuit Breakers In Flight. The FAA reiterates its concern about resetting CBs during flight. Crewmembers may create a potentially hazardous situation if they reset a CB without knowing what caused it to trip. A tripped CB should not be reset in flight unless doing so is consistent with explicit procedures specified in the approved operating manual used by the flightcrew or unless, in the judgment of the captain, resetting the CB is necessary for the safe completion of the flight. A detailed entry in the aircraft’s maintenance log is a proven safety practice for tracking purposes, and may provide maintenance personnel with key information to enable prompt trouble-shooting and effective corrective action on the ground.

Air Carrier manuals and training programs should contain company policies and explicit procedures regarding resetting tripped CBs, both during flight and on the ground. The procedures shown in the manuals used by the air carrier’s crewmembers, maintenance personnel and airplane ground servicing personnel should be consistent with the airplane manufacturer’s guidance. Crewmembers should be reminded that a CB should not be used as a switch to perform procedural functions unless doing so is specified in approved company procedures or manufacturer’s operating procedures.