Question

There is one verb tense error in this paragraph. Correct it:

Thatsaid,thefirsttrulyacceptedtake-offandflightpoweredbynothingotherthanthepilothimself,occurred almostfiftyyearslaterinNovember1961,whenDerekPiggottflewtheSUMPAC(SouthamptonUniversity’sManPoweredAirCraft)athenworld-recorddistanceof650-yards(594m).