Near midair collision with crossing traffic without benefit of TCASII.

Attributes
ACN	209585
Time
Date	199205
Day	Sat
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : pbi airport : fll
State Reference	FL
Altitude	msl bound lower : 5800 msl bound upper : 6000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zma
Operator	common carrier : air carrier
Make Model Name	Light Transport, Low Wing, 2 Turboprop Eng
Navigation In Use	Other Other
Flight Phase	climbout : intermediate altitude
Route In Use	enroute : on vectors
Flight Plan	IFR
Aircraft 2
Operator	general aviation : corporate
Make Model Name	Small Transport, Low Wing, 2 Recip Eng
Flight Phase	cruise other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : cfi pilot : instrument
Experience	flight time last 90 days : 220 flight time total : 3300 flight time type : 1600
ASRS Report	209585
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : cfi pilot : commercial pilot : instrument
Experience	flight time last 90 days : 240 flight time total : 4900 flight time type : 1000
ASRS Report	209842
Events
Anomaly	non adherence other other anomaly other
Independent Detector	other flight crewa
Resolutory Action	flight crew : took evasive action
Consequence	Other
Miss Distance	horizontal : 500 vertical : 200
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error
Situations
ATC Facility	procedure or policy : unspecified

Narrative:

Departed fll on time with a deferred pressurization system, that requires flying at low altitudes with low vertical speed for passenger comfort. WX was clear and not a factor. Talking to fll departure was being vectored north to join V531 north of pbi into orl. About 20 mi southwest of pbi climbing to 7000 passing 5800 an small transport light twin appeared from behind windshield post, wbound at 6000. I was the PF, saw the aircraft determined that he had no relative motion and initiated a steep, diving right turn, at our indicated airspeed of 240 KTS. I was just barely capable of missing the aircraft. Departure control advised us of the traffic immediately following the evasive action. Due to the aircraft's altitude and direction, believe he was also on IFR flight plan. Observed the aircraft for another min with no change in course or altitude. Don't think the small transport pilot ever saw us. I think that see and avoid in such fast aircraft at low altitudes should be a criminal offense.

Original NASA ASRS Text

Title: NMAC WITH XING TFC WITHOUT BENEFIT OF TCASII.

Narrative: DEPARTED FLL ON TIME WITH A DEFERRED PRESSURIZATION SYS, THAT REQUIRES FLYING AT LOW ALTS WITH LOW VERT SPD FOR PAX COMFORT. WX WAS CLR AND NOT A FACTOR. TALKING TO FLL DEP WAS BEING VECTORED N TO JOIN V531 N OF PBI INTO ORL. ABOUT 20 MI SW OF PBI CLBING TO 7000 PASSING 5800 AN SMT LIGHT TWIN APPEARED FROM BEHIND WINDSHIELD POST, WBOUND AT 6000. I WAS THE PF, SAW THE ACFT DETERMINED THAT HE HAD NO RELATIVE MOTION AND INITIATED A STEEP, DIVING R TURN, AT OUR INDICATED AIRSPD OF 240 KTS. I WAS JUST BARELY CAPABLE OF MISSING THE ACFT. DEP CTL ADVISED US OF THE TFC IMMEDIATELY FOLLOWING THE EVASIVE ACTION. DUE TO THE ACFT'S ALT AND DIRECTION, BELIEVE HE WAS ALSO ON IFR FLT PLAN. OBSERVED THE ACFT FOR ANOTHER MIN WITH NO CHANGE IN COURSE OR ALT. DON'T THINK THE SMT PLT EVER SAW US. I THINK THAT SEE AND AVOID IN SUCH FAST ACFT AT LOW ALTS SHOULD BE A CRIMINAL OFFENSE.

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.