C750 flight crew and flight of 2 military F16's had near midair collision in mgm class east.

Attributes
ACN	490674
Time
Date	200011
Day	Thu
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : mgm.airport
State Reference	AL
Altitude	msl bound lower : 11000 msl bound upper : 11500
Environment
Flight Conditions	Marginal
Weather Elements	other
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : mgm.tracon tower : nkt.tower
Operator	general aviation : corporate
Make Model Name	Citation X
Operating Under FAR Part	Part 91
Flight Phase	descent : intermediate altitude
Route In Use	arrival : on vectors
Flight Plan	IFR
Aircraft 2
Controlling Facilities	tracon : mgm.tracon
Operator	other
Make Model Name	Fighting Falcon F16
Operating Under FAR Part	Part 91
Navigation In Use	other
Flight Phase	climbout : vacating altitude
Route In Use	departure : on vectors
Flight Plan	IFR
Person 1
Affiliation	company : corporate
Function	flight crew : captain oversight : pic
Qualification	pilot : commercial pilot : atp pilot : multi engine
Experience	flight time last 90 days : 68 flight time total : 11335 flight time type : 395
ASRS Report	490674
Person 2
Affiliation	company : corporate
Function	flight crew : first officer
Qualification	pilot : multi engine pilot : instrument pilot : commercial
Events
Anomaly	conflict : airborne critical conflict : nmac inflight encounter : weather inflight encounter other non adherence : required legal separation
Independent Detector	aircraft equipment : tcas other controllera other flight crewa other flight crewb
Resolutory Action	controller : issued alert flight crew : took evasive action other
Miss Distance	horizontal : 0 vertical : 200
Supplementary
Problem Areas	ATC Human Performance Flight Crew Human Performance Weather
Primary Problem	Ambiguous

Narrative:

Approach was vectoring us to an area where we could descend. The F16's were called to us at 10000 ft. We had TCASII contact but couldn't see them because we were in and out of clouds. All at once I saw an up arrow on the target and numbers decreasing. We got an RA fly up and voice call 'pull up' at maximum power we climbed to 11600 ft and the target stayed at 200 ft separation until we passed 11500 ft and we separated from the F16's. We saw one of the F16's for a moment just prior to the event. This could have possibly been avoided if the F16's had been on VHF. We knew the controller was talking to a military plane and that was all. I have been trying/begging the local military to use VHF's versus UHF so we could know where each other was. They don't like to. I think all military should use VHF when flying around civilian airports or local traffic areas. Supplemental information from acn 490933: C750 was handed off from center level 11000 ft MSL advised that he climbed due to TCASII resolution from military level at 10000 ft MSL. Traffic was issued and collision alert sounded. No observed loss of separation.

Original NASA ASRS Text

Title: C750 FLC AND FLT OF 2 MIL F16'S HAD NMAC IN MGM CLASS E.

Narrative: APCH WAS VECTORING US TO AN AREA WHERE WE COULD DSND. THE F16'S WERE CALLED TO US AT 10000 FT. WE HAD TCASII CONTACT BUT COULDN'T SEE THEM BECAUSE WE WERE IN AND OUT OF CLOUDS. ALL AT ONCE I SAW AN UP ARROW ON THE TARGET AND NUMBERS DECREASING. WE GOT AN RA FLY UP AND VOICE CALL 'PULL UP' AT MAX PWR WE CLBED TO 11600 FT AND THE TARGET STAYED AT 200 FT SEPARATION UNTIL WE PASSED 11500 FT AND WE SEPARATED FROM THE F16'S. WE SAW ONE OF THE F16'S FOR A MOMENT JUST PRIOR TO THE EVENT. THIS COULD HAVE POSSIBLY BEEN AVOIDED IF THE F16'S HAD BEEN ON VHF. WE KNEW THE CTLR WAS TALKING TO A MIL PLANE AND THAT WAS ALL. I HAVE BEEN TRYING/BEGGING THE LCL MIL TO USE VHF'S VERSUS UHF SO WE COULD KNOW WHERE EACH OTHER WAS. THEY DON'T LIKE TO. I THINK ALL MIL SHOULD USE VHF WHEN FLYING AROUND CIVILIAN ARPTS OR LCL TFC AREAS. SUPPLEMENTAL INFO FROM ACN 490933: C750 WAS HANDED OFF FROM CTR LEVEL 11000 FT MSL ADVISED THAT HE CLBED DUE TO TCASII RESOLUTION FROM MIL LEVEL AT 10000 FT MSL. TFC WAS ISSUED AND COLLISION ALERT SOUNDED. NO OBSERVED LOSS OF SEPARATION.

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.