Large transport has TCASII RA on initial climb as ATC gives immediate heading change.

Attributes
ACN	229936
Time
Date	199212
Day	Thu
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : mco
State Reference	FL
Altitude	msl bound lower : 3000 msl bound upper : 4000
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Controlling Facilities	tracon : mco
Operator	common carrier : air carrier
Make Model Name	Large Transport, Low Wing, 3 Turbojet Eng
Navigation In Use	Other
Flight Phase	climbout : takeoff climbout : initial
Flight Plan	IFR
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	Large Transport, Low Wing, 2 Turbojet Eng
Navigation In Use	Other Other
Flight Phase	climbout : initial climbout : takeoff
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Experience	flight time last 90 days : 200 flight time total : 5000 flight time type : 3000
ASRS Report	229936
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	conflict : airborne less severe non adherence : far non adherence : required legal separation non adherence other other anomaly other other spatial deviation
Independent Detector	aircraft equipment other aircraft equipment : unspecified other controllera
Resolutory Action	flight crew : took evasive action
Consequence	Other
Miss Distance	horizontal : 500 vertical : 1000
Supplementary
Primary Problem	Ambiguous
Air Traffic Incident	other

Narrative:

Flight departed orlando international runway 35. Our clearance was the mccoy 2 SID to 5000 ft. Tower cleared us for takeoff with a turn to 360 degrees at the MM. We took off, cleaned up the aircraft and were climbing through approximately 3000 ft at 210 KIAS when departure control directed an immediate turn to 070 degrees and our TCASII commanded a descent. An air carrier large transport departing from one of the parallel western runways (36L or 36R) was on a converging left to right course 1000 ft behind and 500 ft above us. The turn was initiated and the TCASII warning ceased almost immediately as our ascent rate had been decreased in response to the initial TCASII warning. The PIC had visual contact with the large transport throughout the incident. Our best guess is that the other aircraft was on or given an incorrect heading.

Original NASA ASRS Text

Title: LGT HAS TCASII RA ON INITIAL CLB AS ATC GIVES IMMEDIATE HDG CHANGE.

Narrative: FLT DEPARTED ORLANDO INTL RWY 35. OUR CLRNC WAS THE MCCOY 2 SID TO 5000 FT. TWR CLRED US FOR TKOF WITH A TURN TO 360 DEGS AT THE MM. WE TOOK OFF, CLEANED UP THE ACFT AND WERE CLBING THROUGH APPROX 3000 FT AT 210 KIAS WHEN DEP CTL DIRECTED AN IMMEDIATE TURN TO 070 DEGS AND OUR TCASII COMMANDED A DSCNT. AN ACR LGT DEPARTING FROM ONE OF THE PARALLEL WESTERN RWYS (36L OR 36R) WAS ON A CONVERGING L TO R COURSE 1000 FT BEHIND AND 500 FT ABOVE US. THE TURN WAS INITIATED AND THE TCASII WARNING CEASED ALMOST IMMEDIATELY AS OUR ASCENT RATE HAD BEEN DECREASED IN RESPONSE TO THE INITIAL TCASII WARNING. THE PIC HAD VISUAL CONTACT WITH THE LGT THROUGHOUT THE INCIDENT. OUR BEST GUESS IS THAT THE OTHER ACFT WAS ON OR GIVEN AN INCORRECT HDG.

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.