C172 instructor pilot reported a near midair collision with a king air in the vicinity of ssf airpor...

Attributes
ACN	1402347
Time
Date	201611
Local Time Of Day	1201-1800
Place
Locale Reference	SSF.Airport
State Reference	TX
Environment
Flight Conditions	VMC
Light	Dusk
Aircraft 1
Make Model Name	Skyhawk 172/Cutlass 172
Operating Under FAR Part	Part 91
Flight Phase	Cruise
Route In Use	Direct
Flight Plan	None
Aircraft 2
Make Model Name	King Air C90 E90
Operating Under FAR Part	Part 91
Flight Phase	Cruise
Component
Aircraft Component	Transponder
Person 1
Function	Instructor Pilot Not Flying
Qualification	Flight Crew Commercial Flight Crew Instrument Flight Crew Flight Instructor
Experience	Flight Crew Last 90 Days 100 Flight Crew Total 1100 Flight Crew Type 600
Events
Anomaly	Aircraft Equipment Problem Less Severe Conflict NMAC
Miss Distance	Horizontal 50 Vertical 0

Narrative:

I was flying to ssf with my transponder going in and out according to ATC. I saw everything on my end working the way it was supposed to be working. (Getting a little light that flashes on the transponder). I was trying to get flight following to ssf when I could not get a word in to request it as the controller was busy working the traffic in the current sector. I did hear him make a call out to the king air and heard him call our position out to them. I started to look in all directions but could not see. They were moving in a southwest direction while we were heading due north. I saw the king air just in time to react by turning left and diving in order to make it away from the airplane. I had about 2 seconds to see that they were making no action to change direction and so I took the plane from my student and made a dive away from them. Contributing factors: cessna 172 transponder intermittent; flight following was not possible due to controller's workload and equipment malfunction; king air facing dusk sun.

Original NASA ASRS Text

Title: C172 instructor pilot reported a NMAC with a King Air in the vicinity of SSF airport.

Narrative: I was flying to SSF with my transponder going in and out according to ATC. I saw everything on my end working the way it was supposed to be working. (Getting a little light that flashes on the transponder). I was trying to get flight following to SSF when I could not get a word in to request it as the Controller was busy working the traffic in the current sector. I did hear him make a call out to the King Air and heard him call our position out to them. I started to look in all directions but could not see. They were moving in a southwest direction while we were heading due north. I saw the King Air just in time to react by turning left and diving in order to make it away from the airplane. I had about 2 seconds to see that they were making no action to change direction and so I took the plane from my student and made a dive away from them. Contributing factors: Cessna 172 transponder intermittent; Flight Following was not possible due to controller's workload and equipment malfunction; King Air facing dusk sun.

Data retrieved from NASA's ASRS site 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.

C172 instructor pilot reported a near midair collision with a king air in the vicinity of ssf airport.