Near midair collision between 2 small aircraft's in uncontrolled airport traffic pattern.

Attributes
ACN	104307
Time
Date	198902
Day	Thu
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : x41
State Reference	FL
Altitude	agl bound lower : 300 agl bound upper : 800
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	general aviation : instructional
Make Model Name	Small Aircraft, Low Wing, 1 Eng, Fixed Gear
Flight Phase	descent : approach landing other other
Flight Plan	None
Aircraft 2
Make Model Name	Small Aircraft, High Wing, 1 Eng, Fixed Gear
Flight Phase	descent : approach landing other
Person 1
Affiliation	Other
Function	instruction : instructor oversight : pic
Qualification	pilot : instrument pilot : commercial pilot : cfi
Experience	flight time last 90 days : 300 flight time total : 1600 flight time type : 1000
ASRS Report	104307
Person 2
Affiliation	Other
Function	instruction : trainee
Qualification	pilot : student
Events
Anomaly	conflict : nmac other spatial deviation
Independent Detector	other flight crewa
Resolutory Action	other
Consequence	Other
Miss Distance	horizontal : 150 vertical : 100
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

My student and I were practicing touch and go's at X41. There was much traffic in the pattern that day and me and my student were on downwind for runway 8 and by use of unicom and visibility indications were trying to figure out what # we were for the runway. When we thought that we were cleared for touch and go, we discovered that while on final for runway 8 that we had cut another plane off ahead of us and he was 100-150' below us. He went around and we landed. This conflict could have been avoided by better scanning of the traffic pattern.

Original NASA ASRS Text

Title: NMAC BETWEEN 2 SMA'S IN UNCONTROLLED ARPT TRAFFIC PATTERN.

Narrative: MY STUDENT AND I WERE PRACTICING TOUCH AND GO'S AT X41. THERE WAS MUCH TFC IN THE PATTERN THAT DAY AND ME AND MY STUDENT WERE ON DOWNWIND FOR RWY 8 AND BY USE OF UNICOM AND VIS INDICATIONS WERE TRYING TO FIGURE OUT WHAT # WE WERE FOR THE RWY. WHEN WE THOUGHT THAT WE WERE CLRED FOR TOUCH AND GO, WE DISCOVERED THAT WHILE ON FINAL FOR RWY 8 THAT WE HAD CUT ANOTHER PLANE OFF AHEAD OF US AND HE WAS 100-150' BELOW US. HE WENT AROUND AND WE LANDED. THIS CONFLICT COULD HAVE BEEN AVOIDED BY BETTER SCANNING OF THE TFC PATTERN.

Data retrieved from NASA's ASRS site as of August 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.