Flight crew of medium large transport had TCASII RA at 11000 in atl TCA, excursioned to 11400 to clear RA. Controller advised no traffic on his scope in that area.

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Attributes
ACN	188830
Time
Date	199109
Day	Wed
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : atl
State Reference	GA
Altitude	msl bound lower : 11000 msl bound upper : 11400
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : atl
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Navigation In Use	Other Other
Flight Phase	descent : approach descent other
Route In Use	arrival other arrival star : star
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : commercial pilot : flight engineer pilot : instrument
Experience	flight time last 90 days : 156 flight time total : 9900 flight time type : 2600
ASRS Report	188830
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument pilot : flight engineer pilot : atp
Experience	flight time last 90 days : 210 flight time total : 5000 flight time type : 2300
ASRS Report	189050
Events
Anomaly	altitude deviation : excursion from assigned altitude non adherence : clearance other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified
Resolutory Action	flight crew : returned to intended course or assigned course
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Received TCASII 'TA' due to atl departure traffic at 10000 ft (1000 ft below us) while about 25 DME from atl VOR. We visually saw aircraft and were well clear. A few mins later, at 232 degree/15 DME, we received TCASII 'RA' to 'climb, climb.' we advised atl approach control of 'RA' and that we were complying with TCASII RA. They stated they had no traffic in our vicinity and were upset at our climb to 11400 ft (at 11400 ft TCASII stated 'clear of conflict' and we descended back to 11000 ft). We did not see 'intruder' on scope or visually.

Original NASA ASRS Text

Title: FLC OF MLG HAD TCASII RA AT 11000 IN ATL TCA, EXCURSIONED TO 11400 TO CLR RA. CTLR ADVISED NO TFC ON HIS SCOPE IN THAT AREA.

Narrative: RECEIVED TCASII 'TA' DUE TO ATL DEP TFC AT 10000 FT (1000 FT BELOW US) WHILE ABOUT 25 DME FROM ATL VOR. WE VISUALLY SAW ACFT AND WERE WELL CLR. A FEW MINS LATER, AT 232 DEG/15 DME, WE RECEIVED TCASII 'RA' TO 'CLB, CLB.' WE ADVISED ATL APCH CTL OF 'RA' AND THAT WE WERE COMPLYING WITH TCASII RA. THEY STATED THEY HAD NO TFC IN OUR VICINITY AND WERE UPSET AT OUR CLB TO 11400 FT (AT 11400 FT TCASII STATED 'CLR OF CONFLICT' AND WE DSNDED BACK TO 11000 FT). WE DID NOT SEE 'INTRUDER' ON SCOPE OR VISUALLY.

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.