Cfii with instrument student has near midair collision with corporate jet.

Attributes
ACN	142391
Time
Date	199004
Day	Fri
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : 390k
State Reference	OK
Altitude	msl bound lower : 5500 msl bound upper : 5500
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : okc
Operator	general aviation : instructional
Make Model Name	Small Aircraft, Low Wing, 1 Eng, Fixed Gear
Flight Phase	cruise other
Flight Plan	None
Aircraft 2
Operator	general aviation : corporate
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Flight Phase	climbout : intermediate altitude climbout : initial
Person 1
Affiliation	Other
Function	instruction : instructor
Qualification	pilot : instrument pilot : cfi pilot : commercial
Experience	flight time last 90 days : 125 flight time total : 1220 flight time type : 400
ASRS Report	142391
Person 2
Affiliation	Other
Function	instruction : trainee
Qualification	pilot : private
Experience	flight time last 90 days : 25 flight time total : 170 flight time type : 128
ASRS Report	142503
Events
Anomaly	conflict : nmac other anomaly other
Independent Detector	other flight crewa
Resolutory Action	flight crew : took evasive action
Consequence	Other
Miss Distance	horizontal : 100 vertical : 250
Supplementary
Primary Problem	Flight Crew Human Performance

Narrative:

Was conducting instrument flight instruction. Lesson was intersection holds. The student had been holding at the intersection for about 15 mins at same altitude. Used 5500' MSL because inbound heading was eastbound. Our aircraft was mode C/encoding and was in use. Aircraft is IFR current. Conflict aircraft passed from south to north of us in a rapid descent. It had to turn westerly to avoid another aircraft about 2 mi north of our position. While I was operating in a known student practice area outside of the arsa boundaries, we could possibly had made contact with the approach/departure controller. Not sure this would be a good idea because the controller would need to track needless numbers of aircraft in a practice area. It is known that controllers train on the terminal system here. They regularly make a practice of transiting aircraft from the south up the corridor above the main north/south highway in the state. This corridor goes right through a known student practice area. Generally, student maneuvers are below the altitude of the overflying jets, but not always. When the main airport is using north flow, the aircraft are sent right through. I don't feel it would be too difficult to move the corridor.

Original NASA ASRS Text

Title: CFII WITH INSTRUMENT STUDENT HAS NMAC WITH CORPORATE JET.

Narrative: WAS CONDUCTING INSTRUMENT FLT INSTRUCTION. LESSON WAS INTXN HOLDS. THE STUDENT HAD BEEN HOLDING AT THE INTXN FOR ABOUT 15 MINS AT SAME ALT. USED 5500' MSL BECAUSE INBND HDG WAS EBND. OUR ACFT WAS MODE C/ENCODING AND WAS IN USE. ACFT IS IFR CURRENT. CONFLICT ACFT PASSED FROM S TO N OF US IN A RAPID DSNT. IT HAD TO TURN WESTERLY TO AVOID ANOTHER ACFT ABOUT 2 MI N OF OUR POS. WHILE I WAS OPERATING IN A KNOWN STUDENT PRACTICE AREA OUTSIDE OF THE ARSA BOUNDARIES, WE COULD POSSIBLY HAD MADE CONTACT WITH THE APCH/DEP CTLR. NOT SURE THIS WOULD BE A GOOD IDEA BECAUSE THE CTLR WOULD NEED TO TRACK NEEDLESS NUMBERS OF ACFT IN A PRACTICE AREA. IT IS KNOWN THAT CTLRS TRAIN ON THE TERMINAL SYS HERE. THEY REGULARLY MAKE A PRACTICE OF TRANSITING ACFT FROM THE S UP THE CORRIDOR ABOVE THE MAIN N/S HWY IN THE STATE. THIS CORRIDOR GOES RIGHT THROUGH A KNOWN STUDENT PRACTICE AREA. GENERALLY, STUDENT MANEUVERS ARE BELOW THE ALT OF THE OVERFLYING JETS, BUT NOT ALWAYS. WHEN THE MAIN ARPT IS USING N FLOW, THE ACFT ARE SENT RIGHT THROUGH. I DON'T FEEL IT WOULD BE TOO DIFFICULT TO MOVE THE CORRIDOR.

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.