A B727 LANDS AT ATL WITHOUT LNDG CLRNC. THERE WAS SOME QUESTION AS TO WHETHER A HDOF HAD BEEN ACCOMPLISHED BY THE APCH CTL FA.

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5 NM S OF ATL; WHILE BEING VECTORED FOR A SHORT APCH INTO ATL; I (THE PF) WAS CONFIGURING THE ACFT FOR LNDG AND THE FO WAS COMMUNICATING WITH APCH. AFTER HAVING BEEN CLRED FOR THE APCH; WE CONTINUED AND LANDED ON RWY 9R IN ATL. IT WAS NOT UNTIL AFTER LNDG THAT THE FO DISCOVERED THAT WE HAD NOT CHANGED OVER TO TWR FREQ. WE CANNOT HONESTLY REMEMBER IF WE WERE HANDED OFF TO TWR. CONSEQUENTLY; AFTER LNDG; I CONTACTED THE TWR BY TELEPHONE TO DETERMINE IF WE HAD ENDANGERED ANY OTHER ACFT IN THE AREA. THE TWR CTLR ASSURED ME THAT WE HAD NOT AND THAT HE WAS AWARE OF THE SIT. HE MENTIONED THAT HE HAD BEEN TRYING TO HAVE THE APCH CTLR TO HAND US OFF TO HIM. HOWEVER; TRAINING HAD BEEN TAKING PLACE AND HE WAS UNSUCCESSFUL IN HIS ATTEMPTS. IN RETROSPECT; I DETERMINED THAT AS A RESULT OF THE SHORT APCH CLRNC AND THE NEED TO CONFIGURE THE ACFT FOR LNDG; I PERMITTED THE SIT TO DISTRACT MY ATTN FROM OTHER GOINGS ON IN THE COCKPIT. IN THE FUTURE; I WILL BE CERTAIN TO TIE THE LNDG CLRNC TO ANOTHER ACTION IN THE COCKPIT -- PERHAPS THE LOWERING OF THE LNDG GEAR.