Flight Crew Instrument; Flight Crew Multiengine; Flight Crew Air Transport Pilot (ATP)
Situational Awareness; Workload; Communication Breakdown; Fatigue
Aircraft Equipment Problem Less Severe; Deviation / Discrepancy - Procedural Published Material / Policy; Deviation / Discrepancy - Procedural FAR; Inflight Event / Encounter Unstabilized Approach
Flight Crew Became Reoriented; Flight Crew Regained Aircraft Control
Aircraft; Procedure; Human Factors
During the final segment of the approach phase on short final; we hear gear up at 960 feet RA. Captain told Pilot Monitoring to put the gear down and decided to continue to land. We decided it was safer to land rather to do the balked landing.I believe the cause of the event was fatigue and complacency. I felt a little tired and did not scan and confirm Captain checklist items that were called for. It was night time with turbulence and at a critical phase of flight were several things were happening at the same time.I need to be more aware of confirming actual checklist items at critical phases of flight and scanning everything looks good when the Captain is focused on flying the aircraft into ZZZ.
Air carrier First Officer reported fatigue and procedural deviations led to the landing gear not being lowered per the checklist resulting in an unstabilized approach.