Regional Jet 200 ER/LR (CRJ200)
Flight Crew Air Transport Pilot (ATP); Flight Crew Instrument; Flight Crew Multiengine
Fatigue; Situational Awareness
Deviation / Discrepancy - Procedural Published Material / Policy; Inflight Event / Encounter Unstabilized Approach
Flight Crew Executed Go Around / Missed Approach
Company Policy; Human Factors
Failed to fully configure aircraft. Both of us were focused on the aircraft in front of us; talking about the fact that he wasn't moving off the runway fast enough. Focused on that; we forgot to put gear down and complete configuration. Received the gear horn descending through 1;000 ft. with flaps 20. It took us a second or two to realize what just happened. I looked down and saw our altitude of 870 ft. and called for a go-around. Tower asked the reason and I replied that we weren't fully configured. They questioned us to make sure it wasn't their fault that we were too close but it wasn't their fault. Normal go-around followed by normal approach and landing. Just exhausted; I came off 2 full days off with decent sleep but only slept about 2 hours during the overnight. Eliminate stand-ups; the continuous duty-periods of them go completely against everything we know about fatigue; circadian rhythm; etc.
Captain reported fatigued resulted in a go around due to aircraft not being properly configured.