C401 initiates evasive maneuvers from a T34 northeast of nse airport under P31's control.

Attributes
ACN	550115
Time
Date	200206
Day	Wed
Local Time Of Day	0601 To 1200
Place
Locale Reference	navaid : nse.tacan
State Reference	FL
Altitude	msl single value : 8000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : p31.tracon
Operator	general aviation : personal
Make Model Name	Cessna 310/T310C
Operating Under FAR Part	Part 91
Flight Phase	cruise : level
Flight Plan	IFR
Aircraft 2
Controlling Facilities	tracon : p31.tracon
Operator	other
Make Model Name	Mentor (T-34)
Operating Under FAR Part	Part 91
Flight Phase	other
Flight Plan	VFR
Person 1
Affiliation	government : faa
Function	controller : approach
Qualification	controller : radar
Experience	controller radar : 8
ASRS Report	550115
Person 2
Affiliation	other
Function	flight crew : single pilot
Events
Anomaly	altitude deviation : excursion from assigned altitude conflict : airborne critical non adherence : published procedure non adherence : required legal separation other anomaly other other spatial deviation
Independent Detector	other flight crewa
Resolutory Action	controller : issued new clearance flight crew : took evasive action
Miss Distance	horizontal : 0 vertical : 400
Supplementary
Problem Areas	Airspace Structure Flight Crew Human Performance ATC Human Performance
Primary Problem	Airspace Structure
Air Traffic Incident	Inter Facility Coordination Failure Intra Facility Coordination Failure
Situations
ATC Facility	procedure or policy : zjx.artcc

Narrative:

C401 level at 8000 ft. I had observed no traffic in his vicinity. He asked if I saw traffic on top of him and I said no. A few seconds later, I observed a target on an aerobatic code at 8400 ft. I told C401 to maneuver as necessary and he made several hard turns and descended to 6000 ft. The aerobatic seemed to descend/follow him. The aerobatic's transponder was intermittent. The event took place just north of V241. There are not supposed to be aerobatic T34's working in that area. Even when they are working in the correct areas, the aerobatic T34's frequency causes VFR and IFR aircraft to have to deviate. It is often difficult or impossible to vector away from the aerobatic J34's because we don't know which way they are going, or whether they are going to climb or descend. They should move their aerobatics to an MOA or somewhere without other IFR/VFR traffic.

Original NASA ASRS Text

Title: C401 INITIATES EVASIVE MANEUVERS FROM A T34 NE OF NSE ARPT UNDER P31'S CTL.

Narrative: C401 LEVEL AT 8000 FT. I HAD OBSERVED NO TFC IN HIS VICINITY. HE ASKED IF I SAW TFC ON TOP OF HIM AND I SAID NO. A FEW SECONDS LATER, I OBSERVED A TARGET ON AN AEROBATIC CODE AT 8400 FT. I TOLD C401 TO MANEUVER AS NECESSARY AND HE MADE SEVERAL HARD TURNS AND DSNDED TO 6000 FT. THE AEROBATIC SEEMED TO DSND/FOLLOW HIM. THE AEROBATIC'S XPONDER WAS INTERMITTENT. THE EVENT TOOK PLACE JUST N OF V241. THERE ARE NOT SUPPOSED TO BE AEROBATIC T34'S WORKING IN THAT AREA. EVEN WHEN THEY ARE WORKING IN THE CORRECT AREAS, THE AEROBATIC T34'S FREQ CAUSES VFR AND IFR ACFT TO HAVE TO DEVIATE. IT IS OFTEN DIFFICULT OR IMPOSSIBLE TO VECTOR AWAY FROM THE AEROBATIC J34'S BECAUSE WE DON'T KNOW WHICH WAY THEY ARE GOING, OR WHETHER THEY ARE GOING TO CLB OR DSND. THEY SHOULD MOVE THEIR AEROBATICS TO AN MOA OR SOMEWHERE WITHOUT OTHER IFR/VFR TFC.

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.