Commercial Fixed Wing
Flight Crew Instrument; Flight Crew Multiengine; Flight Crew Air Transport Pilot (ATP)
Time Pressure; Training / Qualification; Communication Breakdown; Physiological - Other; Situational Awareness
Aircraft Equipment Problem Less Severe; Deviation / Discrepancy - Procedural Published Material / Policy
General None Reported / Taken
Aircraft; Software and Automation; Human Factors; Environment - Non Weather Related
I was pilot monitoring for the flight. It was my first leg after completing training and not flying for 1 year. We were cleared for takeoff from Runway X in ZZZ. I noticed that the Captain hesitated to add thrust. He was clicking the TOGA buttons and also clearing the flight director several times. I wasn't sure what was going on; and then happened to catch a red line through the bottom TO indication of the FMA just as the CA was clearing the FD again. He then added thrust and we took off. At first; I didn't realize that this was an issue; as we are allowed to take off raw data. However; as we lifted off; I realized that this was wrong and we should have figured out why the bottom TO annunciation was red.The issue was caused by some sort of FD problem that the Captain had noticed and tried to correct by clearing the FD and reactivating TOGA several times. He elected to takeoff anyway; and my slowness to realize what was happening contributed to us taking off.My lack of recent experience caused a delay in my realization that we should have figured out the problem before taking off. I was nervous to be back on the line after 1 year; and was focused on the upcoming takeoff and making correct call outs. The Captain repeatedly clicking the TOGA and FD buttons caught me off guard and I did not realize until it was too late that there was an issue.Both of us should have made the decision to simply pull off the runway and figure out why the TO annunciation had a red line through it. It wouldn't have taken very long. Yes; we can take off raw data but not if we know that there is a FD problem.
Air carrier First Officer reported the lack of recent experience caused the improper use of SOP's during a takeoff configuration irregularity.