Narrative:

Compressed and reduced crew show times along with remote and unfamiliar locations with higher workloads from reduced staff along with airline uncertainties sets the stage of additional threats prior to aircraft boarding.first officer seat swap with relief pilot to maintain currency along with a reduced arrival time at the remote aircraft parking further complicates and influences unexpected changes to proven habit patterns that often catches mistakes or details that unintentionally fall through the cracks. Crew situational awareness broke down. After all the extenuating circumstances; reasons and deflections of blame are reviewed and scrutinized I take full responsibility for an unintentional safe departure with missing printed takeoff data.had I followed my normal crosschecks including a simple marking of all pre-departure printed paperwork highlighted by green sharpie marker; I feel 'the crew' would have easily caught this blunder and broken the chain of events that caused this error.through this extreme humbling experience learning has definitely occurred.I hope other crews learn from this mistake for which I offer no excuses.

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Original NASA ASRS Text

Title: Air carrier Captain reported departing without proper takeoff data; citing high workload and career uncertainties related to COVID-19 cutbacks as contributing.

Narrative: Compressed and reduced crew show times along with remote and unfamiliar locations with higher workloads from reduced staff along with airline uncertainties sets the stage of additional threats prior to aircraft boarding.First Officer seat swap with Relief Pilot to maintain currency along with a reduced arrival time at the remote aircraft parking further complicates and influences unexpected changes to proven habit patterns that often catches mistakes or details that unintentionally fall through the cracks. Crew situational awareness broke down. After all the extenuating circumstances; reasons and deflections of blame are reviewed and scrutinized I take full responsibility for an unintentional safe departure with missing printed takeoff data.Had I followed my normal crosschecks including a simple marking of all pre-departure printed paperwork highlighted by green sharpie marker; I feel 'THE CREW' would have easily caught this blunder and broken the chain of events that caused this error.Through this extreme humbling experience learning has definitely occurred.I hope other crews learn from this mistake for which I offer no excuses.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.