Near midair collision between air carrier turboprop and light twin at tncm.

Attributes
ACN	464133
Time
Date	200002
Day	Sat
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : tncm.airport
State Reference	FO
Altitude	msl single value : 1500
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Light Transport, Low Wing, 2 Turboprop Eng
Operating Under FAR Part	Part 121
Flight Phase	climbout : initial
Flight Plan	IFR
Aircraft 2
Make Model Name	Small Aircraft, Low Wing, 2 Eng, Retractable Gear
Flight Phase	cruise : level
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : multi engine pilot : atp pilot : cfi pilot : flight engineer
Experience	flight time last 90 days : 300 flight time total : 7000 flight time type : 2000
ASRS Report	464133
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : multi engine pilot : commercial pilot : instrument
Events
Anomaly	conflict : nmac non adherence : far
Independent Detector	other flight crewa other flight crewb
Resolutory Action	flight crew : took evasive action
Miss Distance	horizontal : 0 vertical : 200
Supplementary
Problem Areas	Flight Crew Human Performance Airport ATC Human Performance
Primary Problem	Flight Crew Human Performance

Narrative:

Juliana ATC cleared us for takeoff from runway 9, with instructions to make a right turn to join the 260 degree radial (pjm VOR), and climb to 2500 ft. We were in the right turn and climbing through 1400 ft, when we were lucky enough to spot a light twin at our altitude on a direct collision course. We had to increase our climb rate, and stop the right turn, to avoid a midair collision. Juliana ATC failed to mention the traffic to us (which was on a right downwind arrival to runway 9). When we notified juliana ATC of our close encounter (O ft horizontal, 200 ft vertical), their response was that they had us both in sight. I was very surprised to hear a controller admit that he visually saw 2 airplanes on a direct collision course, and yet chose to not issue a TA to either aircraft. He apparently planned to situation back and watch the explosion. This is our second near midair collision in 3 weeks, in the same location.

Original NASA ASRS Text

Title: NMAC BTWN ACR TURBOPROP AND LIGHT TWIN AT TNCM.

Narrative: JULIANA ATC CLRED US FOR TKOF FROM RWY 9, WITH INSTRUCTIONS TO MAKE A R TURN TO JOIN THE 260 DEG RADIAL (PJM VOR), AND CLB TO 2500 FT. WE WERE IN THE R TURN AND CLBING THROUGH 1400 FT, WHEN WE WERE LUCKY ENOUGH TO SPOT A LIGHT TWIN AT OUR ALT ON A DIRECT COLLISION COURSE. WE HAD TO INCREASE OUR CLB RATE, AND STOP THE R TURN, TO AVOID A MIDAIR COLLISION. JULIANA ATC FAILED TO MENTION THE TFC TO US (WHICH WAS ON A R DOWNWIND ARR TO RWY 9). WHEN WE NOTIFIED JULIANA ATC OF OUR CLOSE ENCOUNTER (O FT HORIZ, 200 FT VERT), THEIR RESPONSE WAS THAT THEY HAD US BOTH IN SIGHT. I WAS VERY SURPRISED TO HEAR A CTLR ADMIT THAT HE VISUALLY SAW 2 AIRPLANES ON A DIRECT COLLISION COURSE, AND YET CHOSE TO NOT ISSUE A TA TO EITHER ACFT. HE APPARENTLY PLANNED TO SIT BACK AND WATCH THE EXPLOSION. THIS IS OUR SECOND NMAC IN 3 WKS, IN THE SAME LOCATION.

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.