Narrative:

TCASII resolution en route for landing atl. Atl approach control, altitude 11000 ft 2 aircraft displayed on TCASII. Received climb advisory climbed to 11800, received all cleared. Verified with atl approach of our altitude and TCASII resolution. Atl said traffic was no factor. Descended back to 11000 ft uneventful landing. Traffic appeared to be on takeoff climb out of atl. Supplemental information from acn 206605: atl approach said there was an aircraft at our 12 O'clock that would level at 10000 ft, but did not see a problem.

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Original NASA ASRS Text

Title: ALTDEV.

Narrative: TCASII RESOLUTION ENRTE FOR LNDG ATL. ATL APCH CTL, ALT 11000 FT 2 ACFT DISPLAYED ON TCASII. RECEIVED CLB ADVISORY CLBED TO 11800, RECEIVED ALL CLRED. VERIFIED WITH ATL APCH OF OUR ALT AND TCASII RESOLUTION. ATL SAID TFC WAS NO FACTOR. DSNDED BACK TO 11000 FT UNEVENTFUL LNDG. TFC APPEARED TO BE ON TKOF CLB OUT OF ATL. SUPPLEMENTAL INFO FROM ACN 206605: ATL APCH SAID THERE WAS AN ACFT AT OUR 12 O'CLOCK THAT WOULD LEVEL AT 10000 FT, BUT DID NOT SEE A PROBLEM.

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.