Small aircraft on downwind leg and small aircraft entering pattern have near midair collision.

Attributes
ACN	234578
Time
Date	199302
Day	Mon
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : ads
State Reference	TX
Altitude	msl bound lower : 1400 msl bound upper : 1600
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : ads
Operator	general aviation : instructional
Make Model Name	Small Aircraft, High Wing, 1 Eng, Fixed Gear
Flight Phase	cruise other cruise other other
Flight Plan	VFR
Aircraft 2
Operator	general aviation : personal
Make Model Name	Small Aircraft
Flight Phase	other
Person 1
Affiliation	Other
Function	instruction : trainee
Qualification	pilot : instrument pilot : commercial
Experience	flight time last 90 days : 40 flight time total : 350 flight time type : 30
ASRS Report	234578
Person 2
Affiliation	Other
Function	instruction : instructor
Qualification	pilot : cfi
Events
Anomaly	conflict : nmac non adherence : far
Independent Detector	other flight crewa
Resolutory Action	none taken : detected after the fact
Consequence	Other
Miss Distance	horizontal : 50 vertical : 200
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Upon entering right downwind for runway 33 at addison, another aircraft advised tower that he had just had another airplane just miss him. My instructor and I knew that he must have been talking about us. We both eventually found the high wing aircraft at our 6 O'clock and slightly below our altitude. While both of us had been looking while we entered the pattern, we never saw the other aircraft until he was at our 6 O'clock. We were between 100 and 200 ft high when we entered the pattern. Had we been any lower, we would have hit the other aircraft. Tower was very busy and did not tell us about the other aircraft until we were well clear of him.

Original NASA ASRS Text

Title: SMA ON DOWNWIND LEG AND SMA ENTERING PATTERN HAVE NMAC.

Narrative: UPON ENTERING R DOWNWIND FOR RWY 33 AT ADDISON, ANOTHER ACFT ADVISED TWR THAT HE HAD JUST HAD ANOTHER AIRPLANE JUST MISS HIM. MY INSTRUCTOR AND I KNEW THAT HE MUST HAVE BEEN TALKING ABOUT US. WE BOTH EVENTUALLY FOUND THE HIGH WING ACFT AT OUR 6 O'CLOCK AND SLIGHTLY BELOW OUR ALT. WHILE BOTH OF US HAD BEEN LOOKING WHILE WE ENTERED THE PATTERN, WE NEVER SAW THE OTHER ACFT UNTIL HE WAS AT OUR 6 O'CLOCK. WE WERE BTWN 100 AND 200 FT HIGH WHEN WE ENTERED THE PATTERN. HAD WE BEEN ANY LOWER, WE WOULD HAVE HIT THE OTHER ACFT. TWR WAS VERY BUSY AND DID NOT TELL US ABOUT THE OTHER ACFT UNTIL WE WERE WELL CLR OF HIM.

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.