Deviation / Discrepancy - Procedural Published Material / Policy; Deviation / Discrepancy - Procedural Weight And Balance; Deviation / Discrepancy - Procedural FAR
General None Reported / Taken
Human Factors
Flight departed and customer service entity reopened passenger manifest and reseated 9 passengers from coach into first-class cabin without updating [anyone]. Weights invalidated and passengers revised generating a percent Mean Aerodynamic Chord (MAC) of 4.0 (nose heavy).
Load planer reported discovering after departure that Customer Service had reseated 9 passengers from coach into first-class cabin producing a nose heavy condition.