After takeoff mia airport and during climb out, a DC9 crew receive a TCASII RA commanding descent.

Attributes
ACN	627746
Time
Date	200408
Day	Mon
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : fll.airport
State Reference	FL
Altitude	msl single value : 4000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : mia.tracon
Operator	common carrier : air carrier
Make Model Name	DC-9 30
Operating Under FAR Part	Part 121
Flight Phase	climbout : intermediate altitude
Flight Plan	IFR
Aircraft 2
Controlling Facilities	tracon : mia.tracon
Operator	Other
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Flight Phase	cruise : level
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 210 flight time total : 14780 flight time type : 10400
ASRS Report	627746
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Events
Anomaly	non adherence : far
Independent Detector	other flight crewa other flight crewb
Resolutory Action	flight crew : took evasive action
Miss Distance	horizontal : 22000 vertical : 100
Supplementary
Problem Areas	Flight Crew Human Performance ATC Human Performance Airspace Structure
Primary Problem	Ambiguous

Narrative:

After takeoff runway 9L at fll and receiving instruction to make a right turn to a heading of 270 degrees and climb to 4000 ft on frequency 128.6 mia departure, a confirmation was required. Then after the confirmation was received once on a heading, we were clear to climb to 7000 ft. At that time a pop-up TCASII TA immediately became an RA. The target was located +/-100 ft above and +/-4 mi at 11 O'clock position. Oral warning commanding 'descend, descend,' evasive action was taken. We advised the controller that we were unable to climb due to RA evasive action. At 3300 ft, TCASII indicated clear of conflict. We informed the controller that we were clear of conflict and climbing to 7000 ft.

Original NASA ASRS Text

Title: AFTER TKOF MIA ARPT AND DURING CLBOUT, A DC9 CREW RECEIVE A TCASII RA COMMANDING DSCNT.

Narrative: AFTER TKOF RWY 9L AT FLL AND RECEIVING INSTRUCTION TO MAKE A R TURN TO A HDG OF 270 DEGS AND CLB TO 4000 FT ON FREQ 128.6 MIA DEP, A CONFIRMATION WAS REQUIRED. THEN AFTER THE CONFIRMATION WAS RECEIVED ONCE ON A HDG, WE WERE CLR TO CLB TO 7000 FT. AT THAT TIME A POP-UP TCASII TA IMMEDIATELY BECAME AN RA. THE TARGET WAS LOCATED +/-100 FT ABOVE AND +/-4 MI AT 11 O'CLOCK POS. ORAL WARNING COMMANDING 'DSND, DSND,' EVASIVE ACTION WAS TAKEN. WE ADVISED THE CTLR THAT WE WERE UNABLE TO CLB DUE TO RA EVASIVE ACTION. AT 3300 FT, TCASII INDICATED CLR OF CONFLICT. WE INFORMED THE CTLR THAT WE WERE CLR OF CONFLICT AND CLBING TO 7000 FT.

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.