Narrative:

Flight was operating from bna approach control. We were inbound to bna, approximately 35 NM northeast of bna. We were cleared to descend out of 10000 ft for 4000 ft, and cleared for the ILS approach runway 20R. Descending through approximately 6300 ft, the controller cleared us to 3000 ft and were told to expedite through 5000 ft. The controller advised us of traffic at 12 O'clock position, 10 NM, level at 5000 ft. As we began to increase our descent rate, the TCASII issued a TA. The TCASII was quickly adjusted for a better display and it looked as though a descent through 5000 ft was not the safest option. Almost simultaneously the TCASII began issuing a resolution alert to 'reduce descent,' followed by 'climb, climb.' at some point during this occurrence, the controller issued a turn to the other aircraft so as to avoid us laterally. At approximately 5300 ft we stopped our descent and began a climb. At that point we sighted the other aircraft passing off our right wing about 2 NM and 200-300 ft below us. After landing, the captain called bna approach and spoke to the supervisor. The supervisor agreed to look into the situation. As we taxied out for the next leg, to dfw, tower requested that we call back to bna upon our arrival in dfw. The conversation with the supervisor clarified the event and the supervisor stated that a report of 'operational error' would be made.

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Original NASA ASRS Text

Title: B727 FLC CLRED FOR APCH WAS ISSUED ALTERNATE CLRNC TO EXPEDITE DSCNT DUE TO CONFLICTING TFC. TCASII RA INSTRUCTS ACFT TO ARREST DSCNT AND CLB. AS PIC EXECUTED TCASII INSTRUCTIONS, CTLR HAD TO ISSUE EVASIVE TURNS TO CONFLICTING TFC. PIC ALLEGES NMAC. SUBSEQUENT COM WITH TWR SUPVR IDENTS INCIDENT AS OPERROR.

Narrative: FLT WAS OPERATING FROM BNA APCH CTL. WE WERE INBOUND TO BNA, APPROX 35 NM NE OF BNA. WE WERE CLRED TO DSND OUT OF 10000 FT FOR 4000 FT, AND CLRED FOR THE ILS APCH RWY 20R. DSNDING THROUGH APPROX 6300 FT, THE CTLR CLRED US TO 3000 FT AND WERE TOLD TO EXPEDITE THROUGH 5000 FT. THE CTLR ADVISED US OF TFC AT 12 O'CLOCK POS, 10 NM, LEVEL AT 5000 FT. AS WE BEGAN TO INCREASE OUR DSCNT RATE, THE TCASII ISSUED A TA. THE TCASII WAS QUICKLY ADJUSTED FOR A BETTER DISPLAY AND IT LOOKED AS THOUGH A DSCNT THROUGH 5000 FT WAS NOT THE SAFEST OPTION. ALMOST SIMULTANEOUSLY THE TCASII BEGAN ISSUING A RESOLUTION ALERT TO 'REDUCE DSCNT,' FOLLOWED BY 'CLB, CLB.' AT SOME POINT DURING THIS OCCURRENCE, THE CTLR ISSUED A TURN TO THE OTHER ACFT SO AS TO AVOID US LATERALLY. AT APPROX 5300 FT WE STOPPED OUR DSCNT AND BEGAN A CLB. AT THAT POINT WE SIGHTED THE OTHER ACFT PASSING OFF OUR R WING ABOUT 2 NM AND 200-300 FT BELOW US. AFTER LNDG, THE CAPT CALLED BNA APCH AND SPOKE TO THE SUPVR. THE SUPVR AGREED TO LOOK INTO THE SIT. AS WE TAXIED OUT FOR THE NEXT LEG, TO DFW, TWR REQUESTED THAT WE CALL BACK TO BNA UPON OUR ARR IN DFW. THE CONVERSATION WITH THE SUPVR CLARIFIED THE EVENT AND THE SUPVR STATED THAT A RPT OF 'OPERROR' WOULD BE MADE.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.