[音频]CCA you have a___ in your _____Affirm, we have___ engine ____CCA818 say ____Maintain ______ and wait to deal with the problemCCA818 heavy contact potomac departure ____ they know what is going on_____CCA818Tower united 894United894 towerWe’re parked at C2. You know about the air china taking off to the north with ______ coming out of his engineYes, thank you we do, thank youDeparture, CCA818 we_________t of the left engineCCA818 heavy potomac approach-departure, radar contact, _______ and say intentionsOkay ______ and _______