Near midair collision between 2 small aircraft sel aircraft within a class C airspace.

Attributes
ACN	308486
Time
Date	199506
Day	Sun
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : msn
State Reference	WI
Altitude	msl bound lower : 4000 msl bound upper : 4000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : msn artcc : zdc
Operator	general aviation : personal
Make Model Name	Skyhawk 172/Cutlass 172
Operating Under FAR Part	Part 91
Flight Phase	cruise other
Flight Plan	IFR
Aircraft 2
Make Model Name	Skyhawk 172/Cutlass 172
Operating Under FAR Part	Part 91
Flight Phase	cruise other
Person 1
Affiliation	Other
Function	instruction : instructor
Qualification	pilot : atp pilot : cfi
Experience	flight time last 90 days : 50 flight time total : 2700 flight time type : 25
ASRS Report	308486
Person 2
Affiliation	Other
Function	instruction : trainee
Qualification	pilot : private
Events
Anomaly	conflict : nmac other anomaly other
Independent Detector	other flight crewa
Resolutory Action	none taken : insufficient time none taken : detected after the fact
Consequence	Other
Miss Distance	horizontal : 75 vertical : 0
Supplementary
Primary Problem	Flight Crew Human Performance

Narrative:

Controller did not call out conflict. The other plane (a blue/white C-172) may or may not have had an operable transponder. We were close in to the field with vectors being given to the final approach course. The other plane was at the wrong altitude and in the wrong airspace with no communications with approach.

Original NASA ASRS Text

Title: NMAC BTWN 2 SMA SEL ACFT WITHIN A CLASS C AIRSPACE.

Narrative: CTLR DID NOT CALL OUT CONFLICT. THE OTHER PLANE (A BLUE/WHITE C-172) MAY OR MAY NOT HAVE HAD AN OPERABLE XPONDER. WE WERE CLOSE IN TO THE FIELD WITH VECTORS BEING GIVEN TO THE FINAL APCH COURSE. THE OTHER PLANE WAS AT THE WRONG ALT AND IN THE WRONG AIRSPACE WITH NO COMS WITH APCH.

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.