Flight Crew Instrument; Flight Crew Air Transport Pilot (ATP); Flight Crew Multiengine
Communication Breakdown; Confusion
Deviation / Discrepancy - Procedural Published Material / Policy; Deviation / Discrepancy - Procedural Weight And Balance
General None Reported / Taken
Human Factors
During the preflight; I had a jumpseater come to the cockpit and ask to ride in the jumpseat to our destination. This was my first time having someone occupy the jumpseat in over a year due to Covid; and this was my first experience with an Additional Crew Member (ACM) in the auto-closeout passenger counts. The First Officer performed the W&B and Takeoff calculations. Neither of us noticed that the jumpseater was missing from the ACM data that was pushed to us from the gate agent. As a result; we took off with an improper W&B and Takeoff performance calculation. During the climbout I realized I didn't double check the W&B for the ACM before departure and found the ACM was missing. I was chatting with the jumpseater and did not double check the First Officer's work to make sure the jumpseater had been added into the W&B. I should have remained focused and double checked the W&B for the ACM.
Full flight with jumpseat access granted from gate agent; jumpseat would be occupied. Received auto closeout thinking everything was taken care of including ACM in jumpseat. After departure; the Captain asked if the takeoff data included the ACM; after review; it did not. Cause of this event was being in the mindset that passenger auto closeout took care of all people loading considerations without double checking that the ACM was included. Recurrence of the event can be prevented by verifying ACM is included when they are occupying jumpseat instead of relying on auto closeout.
CRJ-200 flight crew reported failing to include the jumpseater in the weight and balance calculations.