Widebody transport on departure has TCASII RA to stop climb.

Attributes
ACN	257886
Time
Date	199311
Day	Sat
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : atl
State Reference	GA
Altitude	msl bound lower : 1500 msl bound upper : 2500
Environment
Flight Conditions	IMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : atl tower : atl
Operator	common carrier : air carrier
Make Model Name	Widebody, Low Wing, 2 Turbojet Eng
Navigation In Use	Other Other
Flight Phase	climbout : takeoff climbout : initial
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : commercial pilot : atp
Experience	flight time last 90 days : 120 flight time total : 8800 flight time type : 1600
ASRS Report	257886
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	conflict : airborne less severe other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified
Resolutory Action	flight crew : took evasive action none taken : insufficient time
Consequence	Other
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error other

Narrative:

Upon handoff from atl tower to departure control, we received a TCASII RA climbing through 2200 ft MSL. Target distance estimated at 1 NM. Departure control gave us an immediate level-off. Climbing at 2500 FPM, we leveled at 2500 ft MSL. Traffic reported at 3000 ft MSL. Within 15 seconds we were clear of traffic. Departure's traffic call coincided with TCASII verbal, blocking some of both xmissions. We relied on the green fly-to arc as there was not time to ask departure control to repeat his traffic call. TCASII first indicated a green fly-to arc of 0-300 FPM climb with red for any greater climb. As we pushed over TCASII switched to green arc at 2500 FPM down (aircraft altitude 1500 ft AGL). The TCASII RA threshold, having been raised from 500 ft AGL to 1500 ft AGL, denies us of a more timely warning. Also would like to know why atl tower did not know/report traffic before we launched.

Original NASA ASRS Text

Title: WDB ON DEP HAS TCASII RA TO STOP CLB.

Narrative: UPON HDOF FROM ATL TWR TO DEP CTL, WE RECEIVED A TCASII RA CLBING THROUGH 2200 FT MSL. TARGET DISTANCE ESTIMATED AT 1 NM. DEP CTL GAVE US AN IMMEDIATE LEVEL-OFF. CLBING AT 2500 FPM, WE LEVELED AT 2500 FT MSL. TFC RPTED AT 3000 FT MSL. WITHIN 15 SECONDS WE WERE CLR OF TFC. DEP'S TFC CALL COINCIDED WITH TCASII VERBAL, BLOCKING SOME OF BOTH XMISSIONS. WE RELIED ON THE GREEN FLY-TO ARC AS THERE WAS NOT TIME TO ASK DEP CTL TO REPEAT HIS TFC CALL. TCASII FIRST INDICATED A GREEN FLY-TO ARC OF 0-300 FPM CLB WITH RED FOR ANY GREATER CLB. AS WE PUSHED OVER TCASII SWITCHED TO GREEN ARC AT 2500 FPM DOWN (ACFT ALT 1500 FT AGL). THE TCASII RA THRESHOLD, HAVING BEEN RAISED FROM 500 FT AGL TO 1500 FT AGL, DENIES US OF A MORE TIMELY WARNING. ALSO WOULD LIKE TO KNOW WHY ATL TWR DID NOT KNOW/RPT TFC BEFORE WE LAUNCHED.

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.