B727 on arrival fll maintaining 6000 ft, TCASII showed traffic 12 O'clock, 4 mi, 500 ft below. At 2 mi, got TCASII RA to climb at 1500 FPM. Captain took aircraft and executed the climb manually. Saw traffic when the aircraft had reached 6900 ft -- cessna. Reporter descended to 6000 ft when clear of traffic.

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Attributes
ACN	358530
Time
Date	199701
Day	Thu
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : fll
State Reference	FL
Altitude	msl bound lower : 6000 msl bound upper : 6900
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : mia
Operator	common carrier : air carrier
Make Model Name	B727 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	descent : approach
Route In Use	enroute : on vectors
Flight Plan	IFR
Aircraft 2
Make Model Name	Cessna Single Piston Undifferentiated or Other Model
Operating Under FAR Part	Part 91
Flight Phase	cruise other
Flight Plan	None
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 225 flight time total : 7000
ASRS Report	358530
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Experience	flight time last 90 days : 80 flight time total : 7000 flight time type : 80
ASRS Report	358373
Events
Anomaly	altitude deviation : excursion from assigned altitude conflict : airborne less severe non adherence : clearance
Independent Detector	aircraft equipment other aircraft equipment : unspecified other flight crewa
Resolutory Action	flight crew : took evasive action
Consequence	Other
Miss Distance	horizontal : 6000 vertical : 1200
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

We were on arrival into fll level at 6000 ft approximately 20 mi northwest of the airport when traffic was seen on the TCASII at 12 O'clock and approximately 4-5 mi, 500 ft below. All 3 of us began looking for the traffic. Then approximately 3-4 mi away the TCASII indicated the traffic was climbing, which was followed by a TA. We were still searching for the traffic, but did not see it. At approximately 2 mi away and 300 ft below us and climbing, we received a TCASII RA, which commanded a 1500 FPM climb. At this point I took control of the aircraft from the first officer, disengaged the autoplt and initiated a climb. The first officer advised ATC we were climbing for a TCASII RA, they responded we had VFR traffic 500 ft below us. We advised them the traffic had climbed into us. I believe the traffic passed beneath us by approximately 100-200 ft and less than 1 mi away. We descended back to 6000 ft after receiving 'clear of conflict' TCASII advisory. Top of deviation was 6900 ft. Supplemental information from acn 358373: we advised ATC and then he pointed out traffic. We found traffic then we saw it -- a cessna.

Original NASA ASRS Text

Title: B727 ON ARR FLL MAINTAINING 6000 FT, TCASII SHOWED TFC 12 O'CLOCK, 4 MI, 500 FT BELOW. AT 2 MI, GOT TCASII RA TO CLB AT 1500 FPM. CAPT TOOK ACFT AND EXECUTED THE CLB MANUALLY. SAW TFC WHEN THE ACFT HAD REACHED 6900 FT -- CESSNA. RPTR DSNDED TO 6000 FT WHEN CLR OF TFC.

Narrative: WE WERE ON ARR INTO FLL LEVEL AT 6000 FT APPROX 20 MI NW OF THE ARPT WHEN TFC WAS SEEN ON THE TCASII AT 12 O'CLOCK AND APPROX 4-5 MI, 500 FT BELOW. ALL 3 OF US BEGAN LOOKING FOR THE TFC. THEN APPROX 3-4 MI AWAY THE TCASII INDICATED THE TFC WAS CLBING, WHICH WAS FOLLOWED BY A TA. WE WERE STILL SEARCHING FOR THE TFC, BUT DID NOT SEE IT. AT APPROX 2 MI AWAY AND 300 FT BELOW US AND CLBING, WE RECEIVED A TCASII RA, WHICH COMMANDED A 1500 FPM CLB. AT THIS POINT I TOOK CTL OF THE ACFT FROM THE FO, DISENGAGED THE AUTOPLT AND INITIATED A CLB. THE FO ADVISED ATC WE WERE CLBING FOR A TCASII RA, THEY RESPONDED WE HAD VFR TFC 500 FT BELOW US. WE ADVISED THEM THE TFC HAD CLBED INTO US. I BELIEVE THE TFC PASSED BENEATH US BY APPROX 100-200 FT AND LESS THAN 1 MI AWAY. WE DSNDED BACK TO 6000 FT AFTER RECEIVING 'CLR OF CONFLICT' TCASII ADVISORY. TOP OF DEV WAS 6900 FT. SUPPLEMENTAL INFO FROM ACN 358373: WE ADVISED ATC AND THEN HE POINTED OUT TFC. WE FOUND TFC THEN WE SAW IT -- A CESSNA.

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.