A PA28 had an near midair collision with a C172 at C77.

Attributes
ACN	751446
Time
Date	200708
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : c77.airport
State Reference	IL
Altitude	agl single value : 200
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : clt.tower
Operator	general aviation : personal
Make Model Name	PA-28 Cherokee/Archer II/Dakota/Pillan/Warrior
Operating Under FAR Part	Part 91
Flight Phase	descent : approach
Route In Use	approach : traffic pattern
Flight Plan	None
Aircraft 2
Operator	general aviation : personal
Make Model Name	Skyhawk 172/Cutlass 172
Operating Under FAR Part	Part 91
Flight Phase	descent : approach
Route In Use	approach : traffic pattern
Person 1
Affiliation	other
Function	instruction : instructor
Qualification	pilot : atp pilot : cfi
Experience	flight time last 90 days : 20 flight time total : 25200 flight time type : 100
ASRS Report	751446
Events
Anomaly	conflict : nmac
Independent Detector	other flight crewa
Resolutory Action	flight crew : took evasive action
Supplementary
Problem Areas	Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance

Narrative:

The flight was for pilot proficiency. The PIC; a private pilot; was in the left seat. I; a flight instructor; was in the right seat. We departed dkb (dekalb; il); did airwork; then properly entered the traffic pattern at C77; poplar grove; il. The task was practice of various types of takeoffs and lndgs to fulfill the requirement of the FAA wings program. The WX was excellent; cloud bases about 2500 ft AGL; visibility at least 10 mi. There were no aircraft in the pattern. The PIC made appropriate radio calls on CTAF; 122.8 MHZ. We had made several lndgs to a full stop. I commented there was no traffic on such a pretty morning. Downwind on the next landing I instructed the PIC to make a short field landing. Again; appropriate radio calls were made. No traffic in sight. We turned final. The PIC was aiming at the end of the runway. We were about 1000 ft off the end of the runway; for landing; and another aircraft flew over the top of us; missing us by about 20 ft. His speed was perhaps 10 mph higher than ours. About 35 seconds later; when it was apparent we had space; the PIC added full power; pulled up and turned right. Collision avoided; I instructed the PIC to climb out of the pattern and depart C77 for a different airport. We discussed going back to confront the other pilot but decided against that. The other pilot made no radio calls on CTAF.

Original NASA ASRS Text

Title: A PA28 HAD AN NMAC WITH A C172 AT C77.

Narrative: THE FLT WAS FOR PLT PROFICIENCY. THE PIC; A PVT PLT; WAS IN THE L SEAT. I; A FLT INSTRUCTOR; WAS IN THE R SEAT. WE DEPARTED DKB (DEKALB; IL); DID AIRWORK; THEN PROPERLY ENTERED THE TFC PATTERN AT C77; POPLAR GROVE; IL. THE TASK WAS PRACTICE OF VARIOUS TYPES OF TKOFS AND LNDGS TO FULFILL THE REQUIREMENT OF THE FAA WINGS PROGRAM. THE WX WAS EXCELLENT; CLOUD BASES ABOUT 2500 FT AGL; VISIBILITY AT LEAST 10 MI. THERE WERE NO ACFT IN THE PATTERN. THE PIC MADE APPROPRIATE RADIO CALLS ON CTAF; 122.8 MHZ. WE HAD MADE SEVERAL LNDGS TO A FULL STOP. I COMMENTED THERE WAS NO TFC ON SUCH A PRETTY MORNING. DOWNWIND ON THE NEXT LNDG I INSTRUCTED THE PIC TO MAKE A SHORT FIELD LNDG. AGAIN; APPROPRIATE RADIO CALLS WERE MADE. NO TFC IN SIGHT. WE TURNED FINAL. THE PIC WAS AIMING AT THE END OF THE RWY. WE WERE ABOUT 1000 FT OFF THE END OF THE RWY; FOR LNDG; AND ANOTHER ACFT FLEW OVER THE TOP OF US; MISSING US BY ABOUT 20 FT. HIS SPD WAS PERHAPS 10 MPH HIGHER THAN OURS. ABOUT 35 SECONDS LATER; WHEN IT WAS APPARENT WE HAD SPACE; THE PIC ADDED FULL PWR; PULLED UP AND TURNED R. COLLISION AVOIDED; I INSTRUCTED THE PIC TO CLB OUT OF THE PATTERN AND DEPART C77 FOR A DIFFERENT ARPT. WE DISCUSSED GOING BACK TO CONFRONT THE OTHER PLT BUT DECIDED AGAINST THAT. THE OTHER PLT MADE NO RADIO CALLS ON CTAF.

Data retrieved from NASA's ASRS site as of January 2009 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.