Narrative:

I was the captain on a scheduled cargo flight from atl-sdf on dec/tue/93. Our position was the iiu 131 degree radial 28 mi, heading 311 degrees, en route to sdf. We were in contact with standiford approach control and were given a clearance to 7000 ft. Passing 7700 ft, approach called and said 'maintain 8000 ft traffic 12 O'clock 7300 ft.' the first officer started to make a correction back to 8000 ft when the flight engineer spotted our traffic at 12 O'clock about 200 ft below and 200 ft horizontal separation. We made an abrupt nose up input. I asked the controller why he hadn't given an earlier warning and I was told the traffic just showed up on the screen. The other aircraft was a light twin, retractable gear, blue and white, heading ene. I believe he was at 7500 ft for that direction of flight. Lessons: the importance of clearing and looking for traffic. When given instructions to return to an amended altitude, do so aggressively. Don't assume there will be time to avoid the traffic conflict. The absolute need to install TCASII on all cargo aircraft in the united states. This near miss wouldn't have occurred if we had TCASII.

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Original NASA ASRS Text

Title: NMAC BTWN A WDB ACR ACFT AND AN SMT TWIN ENG ACFT NEAR A BUSY TERMINAL AREA.

Narrative: I WAS THE CAPT ON A SCHEDULED CARGO FLT FROM ATL-SDF ON DEC/TUE/93. OUR POS WAS THE IIU 131 DEG RADIAL 28 MI, HDG 311 DEGS, ENRTE TO SDF. WE WERE IN CONTACT WITH STANDIFORD APCH CTL AND WERE GIVEN A CLRNC TO 7000 FT. PASSING 7700 FT, APCH CALLED AND SAID 'MAINTAIN 8000 FT TFC 12 O'CLOCK 7300 FT.' THE FO STARTED TO MAKE A CORRECTION BACK TO 8000 FT WHEN THE FE SPOTTED OUR TFC AT 12 O'CLOCK ABOUT 200 FT BELOW AND 200 FT HORIZ SEPARATION. WE MADE AN ABRUPT NOSE UP INPUT. I ASKED THE CTLR WHY HE HADN'T GIVEN AN EARLIER WARNING AND I WAS TOLD THE TFC JUST SHOWED UP ON THE SCREEN. THE OTHER ACFT WAS A LIGHT TWIN, RETRACTABLE GEAR, BLUE AND WHITE, HDG ENE. I BELIEVE HE WAS AT 7500 FT FOR THAT DIRECTION OF FLT. LESSONS: THE IMPORTANCE OF CLRING AND LOOKING FOR TFC. WHEN GIVEN INSTRUCTIONS TO RETURN TO AN AMENDED ALT, DO SO AGGRESSIVELY. DON'T ASSUME THERE WILL BE TIME TO AVOID THE TFC CONFLICT. THE ABSOLUTE NEED TO INSTALL TCASII ON ALL CARGO ACFT IN THE UNITED STATES. THIS NEAR MISS WOULDN'T HAVE OCCURRED IF WE HAD TCASII.

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.