FLC OF AN MD80 HEARD A LOUD BANG AND FELT A HVY VIBRATION FROM THE TAIL SECTION ON INITIAL CLB AFTER TKOF. CAPT IMMEDIATELY TOOK OVER FLYING THE ACFT BUT NOTICED IT VERY HARD TO MOVE FLT CTLS DUE TO THE AUTOPLT BEING ENGAGED BY THE FO JUST PRIOR TO AN ENG FAILURE; WHICH WAS THE CAUSE OF THE NOISE AND VIBRATION.

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AFTER TKOF FROM ATL; R ENG FAILED ABRUPTLY AT 1000 FT AGL. THE FO WAS FLYING THE ACFT. THERE WAS A SUDDEN LOUD BANG THAT EMITTED FROM REAR OF ACFT AND A SUBSEQUENT SHUDDER OF ACFT. I INITIALLY THOUGHT THERE MAY HAVE BEEN SOME TYPE OF COLLISION TO THE ACFT. I TOOK CTL OF ACFT AND DISCOVERED THE FLT CTLS WERE RIGID. I MOMENTARILY CONSIDERED A FLT CTL PROB; THEN REALIZED THE AUTOPLT WAS ENGAGED. I DISCONNECTED THE AUTOPLT AND CALLED FOR 'ENG FAILURE CHKLIST.' THE FO RAN THE CHKLIST AND DECLARED AN EMER. APCH CTL ASSIGNED ALTS OF 3500 FT AND 4000 FT ALSO 2 SUBSEQUENT VECTOR HDGS. I REQUESTED AN EXTENDED DOWNWIND. APCH CTL CLRED ME FOR A VISUAL APCH TO RWY 8L AND QUESTIONED ME IF I COULD MAKE MY TURN TO FINAL WITHOUT OVERSHOOTING RWY 8L. I REPLIED YES. AFTER STARTING TURN IT BECAME OBVIOUS I WAS OVERSHOOTING RWY 8L AND SO ADVISED TWR. I WAS KEPT ADVISED OF ALL THE TFC IN MY AREA. LNDG WAS ACCOMPLISHED ON RWY 8L. I RECEIVED EXCELLENT HANDLING BY APCH CTL AND TWR CTLR. LESSONS LEARNED: 1) IF THE AUTOPLT IS ENGAGED AT LOW ALT BEFORE ACFT IS CONFIGURED CLEAN AND THERE IS A TRANSFER OF CTL DUE TO THIS TYPE OF EMER; IT CAN CAUSE A DELAY IN THE ANALYZING PROCESS IN DETERMINING WHAT TYPE OF EMER OR EMERS ARE PRESENT. 2) DUE TO CLOSE IN DOWNWIND LEG TO RWY; HIGHER THAN NORMAL APCH SPD; TURNING INTO GOOD ENG; MAKING SURE ALL COCKPIT WORK HAS BEEN COMPLETED; I OVERSHOT RWY CTRLINE AND COULDN'T CONFORM TO ATC REQUEST WHICH I HAD AGREED TO. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: RPTR STATED THAT HE HEARD THROUGH MAINT THAT THE TURBINE BLADE SECTION FAILED IN THE ENG CAUSING A CATASTROPHIC FAILURE. THE ACFT WAS AN MD80 AND THE COMPANY TRAINED AND USED A PROC FOR YRS OF NOT ENGAGING THE AUTOPLT UNTIL AFTER COMPLETE ACFT CLEAN- UP AFTER TKOF. HOWEVER; THE FO WHO WAS FLYING AT THE TIME OF THE MALFUNCTION; HAD ENGAGED THE AUTOPLT BEFORE CLEAN SINCE THAT WHAT HE WAS TAUGHT TO DO IN RECENT COMPANY TRAINING. NOT KNOWING THIS; IT CAUSED HIM TO THINK THAT THE FLT CTLS HAD BECOME DAMAGED AT FIRST SINCE THEY WERE STIFF AND FIGHTING HIS INPUT. HE STATED THAT HE HAS REVIEWED THIS PROC WITH TRAINING TO ASSURE ALL PLTS ARE AWARE AND USING THE SAME PROC. EMER WAS DECLARED.