Near midair collision in the traffic pattern between 2 GA aircraft at hef, va.

Attributes
ACN	607438
Time
Date	200402
Day	Sat
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : hef.airport
State Reference	VA
Altitude	agl bound lower : 0 agl bound upper : 10
Environment
Flight Conditions	VMC
Light	Dusk
Aircraft 1
Controlling Facilities	tower : hef.tower
Operator	general aviation : instructional
Make Model Name	Skyhawk 172/Cutlass 172
Operating Under FAR Part	Part 91
Flight Phase	descent : approach landing : go around
Route In Use	approach : traffic pattern
Flight Plan	DVR
Aircraft 2
Controlling Facilities	tower : hef.tower
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Flight Phase	landing : go around
Person 1
Affiliation	other
Function	instruction : instructor oversight : pic
Qualification	pilot : instrument pilot : commercial pilot : cfi pilot : multi engine
Experience	flight time last 90 days : 150 flight time total : 650 flight time type : 150
ASRS Report	607438
Person 2
Affiliation	government : faa
Events
Anomaly	airspace violation : entry conflict : nmac non adherence : required legal separation non adherence : clearance other anomaly other
Independent Detector	other controllera
Resolutory Action	controller : issued alert controller : issued new clearance flight crew : took evasive action flight crew : landed as precaution
Miss Distance	horizontal : 0 vertical : 500
Supplementary
Problem Areas	Flight Crew Human Performance ATC Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

I was operating in closed traffic at hef performing touch-and-goes with a student. The class D airspace became increasingly busy and there were several different controllers operating on the same frequency. I reported midfield downwind as instructed by the tower controller. I'm not sure if the controller cleared me to land or cleared me for another touch-and-go but when I executed the next touch-and-go another tower controller informed me I was not cleared 'touch-and-go.' the controller informed me there was another aircraft 'going around' above me and that I was to be a full stop. My aircraft was only 5-10 ft off the ground and I landed and stopped immediately. The confusion seemed to be whether or not my aircraft was cleared for a full stop landing or a touch-and-go. After performing other touch-and-goes, I don't know if the tower controller inadvertently cleared me for another touch-and-go or if I misinterped what was supposed to be a full stop landing.

Original NASA ASRS Text

Title: NMAC IN THE TFC PATTERN BTWN 2 GA ACFT AT HEF, VA.

Narrative: I WAS OPERATING IN CLOSED TFC AT HEF PERFORMING TOUCH-AND-GOES WITH A STUDENT. THE CLASS D AIRSPACE BECAME INCREASINGLY BUSY AND THERE WERE SEVERAL DIFFERENT CTLRS OPERATING ON THE SAME FREQ. I RPTED MIDFIELD DOWNWIND AS INSTRUCTED BY THE TWR CTLR. I'M NOT SURE IF THE CTLR CLRED ME TO LAND OR CLRED ME FOR ANOTHER TOUCH-AND-GO BUT WHEN I EXECUTED THE NEXT TOUCH-AND-GO ANOTHER TWR CTLR INFORMED ME I WAS NOT CLRED 'TOUCH-AND-GO.' THE CTLR INFORMED ME THERE WAS ANOTHER ACFT 'GOING AROUND' ABOVE ME AND THAT I WAS TO BE A FULL STOP. MY ACFT WAS ONLY 5-10 FT OFF THE GND AND I LANDED AND STOPPED IMMEDIATELY. THE CONFUSION SEEMED TO BE WHETHER OR NOT MY ACFT WAS CLRED FOR A FULL STOP LNDG OR A TOUCH-AND-GO. AFTER PERFORMING OTHER TOUCH-AND-GOES, I DON'T KNOW IF THE TWR CTLR INADVERTENTLY CLRED ME FOR ANOTHER TOUCH-AND-GO OR IF I MISINTERPED WHAT WAS SUPPOSED TO BE A FULL STOP LNDG.

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.