JS41 crew had less than legal spacing with an F15 in a vertical climb in T75 class B airspace.

Attributes
ACN	522273
Time
Date	200108
Day	Wed
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : t75.tracon
State Reference	MO
Altitude	msl bound lower : 8000 msl bound upper : 8500
Environment
Flight Conditions	Mixed
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : t75.tracon artcc : zfw.artcc
Operator	common carrier : air carrier
Make Model Name	Jetstream 41
Operating Under FAR Part	Part 121
Flight Phase	climbout : intermediate altitude
Flight Plan	IFR
Aircraft 2
Operator	other
Make Model Name	Eagle (F-15)
Operating Under FAR Part	Part 91
Flight Phase	climbout : vacating altitude
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp pilot : multi engine pilot : cfi pilot : commercial pilot : flight engineer pilot : instrument
Experience	flight time last 90 days : 100 flight time total : 28000 flight time type : 1250
ASRS Report	522273
Person 2
Affiliation	company : air carrier
Qualification	pilot : atp
Experience	flight time last 90 days : 220 flight time total : 5300 flight time type : 220
ASRS Report	521745
Events
Anomaly	conflict : airborne critical non adherence : required legal separation non adherence : published procedure non adherence : far other anomaly other
Independent Detector	aircraft equipment : tcas other flight crewa other flight crewb
Resolutory Action	flight crew : took evasive action none taken : detected after the fact other
Miss Distance	horizontal : 600
Supplementary
Problem Areas	ATC Human Performance
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error

Narrative:

We were flying at 8000 ft and being vectored by stl approach. We were exactly where we were supposed to be. A TA appeared on the TCASII. It was climbing fast. Captain initiated a climb due to the RA. I asked ATC about traffic. We both began to look. We saw an F15 bust out of the clouds, almost vertical. It passed by our 1 O'clock position within 600 ft. The F15 climbed right through our altitude and kept on going. ATC then responded to my traffic query by stating traffic was well above and behind us. I told them we were 500 ft high for the RA but returning to 8000 ft. Rest of the flight was uneventful.

Original NASA ASRS Text

Title: JS41 CREW HAD LESS THAN LEGAL SPACING WITH AN F15 IN A VERT CLB IN T75 CLASS B AIRSPACE.

Narrative: WE WERE FLYING AT 8000 FT AND BEING VECTORED BY STL APCH. WE WERE EXACTLY WHERE WE WERE SUPPOSED TO BE. A TA APPEARED ON THE TCASII. IT WAS CLBING FAST. CAPT INITIATED A CLB DUE TO THE RA. I ASKED ATC ABOUT TFC. WE BOTH BEGAN TO LOOK. WE SAW AN F15 BUST OUT OF THE CLOUDS, ALMOST VERT. IT PASSED BY OUR 1 O'CLOCK POS WITHIN 600 FT. THE F15 CLBED RIGHT THROUGH OUR ALT AND KEPT ON GOING. ATC THEN RESPONDED TO MY TFC QUERY BY STATING TFC WAS WELL ABOVE AND BEHIND US. I TOLD THEM WE WERE 500 FT HIGH FOR THE RA BUT RETURNING TO 8000 FT. REST OF THE FLT WAS UNEVENTFUL.

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.