Commercial Fixed Wing
Flight Crew Multiengine; Flight Crew Instrument; Flight Crew Air Transport Pilot (ATP)
Communication Breakdown; Time Pressure
Deviation / Discrepancy - Procedural FAR; Deviation / Discrepancy - Procedural Published Material / Policy; Flight Deck / Cabin / Aircraft Event Passenger Misconduct
Flight Crew Became Reoriented
Human Factors
We were delayed and were trying our best to make up time and get out as close to on time as possible. Cause - Delayed; passenger mask issue; bad headset.Suggestions - Finish a checklist or task before moving onto the subsequent item on a to do list. Before Start Checklist below the line was called for but right at that moment; we were simultaneously distracted by both Ramp Agent and the Flight Attendant with a passenger issue. We diverted out attention to the two external factors and did not finish the checklist. Had we appropriately created a boundary between what was most important at the moment; we would've not missed the checklist prior to push back. It wasn't until after push back commenced that we realized we had no completed the checklist.
We were delayed significantly due to weather in ZZZ; there were distractions due to ramp headset squeals and a passenger issue regarding a mask. We forgot to complete the before start checklist below the line checklist before pushing back.Cause - Passenger issues; ramp headset issues.Suggestions - Due to being late; I identified mistakes due to rushing was a threat. The mitigation strategy was to continue our efficiencies until push back time. The distractions caused us to miss the completion of the before start checklist below the line until after push back started. We will be more careful next time.
Air carrier flight crew reported deviations from standard practices due to distractions in the cabin; causing check list omissions.