Near midair collision between 2 small aircraft's at non tower airport.

Attributes
ACN	317239
Time
Date	199509
Day	Sat
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : 3bb
State Reference	MI
Altitude	agl bound lower : 400 agl bound upper : 400
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	general aviation : personal
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	Part 91
Flight Phase	descent : approach other
Route In Use	approach : visual
Flight Plan	IFR
Aircraft 2
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	Part 91
Flight Phase	landing : go around other
Route In Use	approach : visual
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : private pilot : instrument
Experience	flight time last 90 days : 10 flight time total : 515 flight time type : 415
ASRS Report	317239
Person 2
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : student
Events
Anomaly	conflict : nmac non adherence : far other spatial deviation
Independent Detector	other flight crewa
Resolutory Action	other
Consequence	Other
Miss Distance	horizontal : 300 vertical : 100
Supplementary
Primary Problem	Flight Crew Human Performance

Narrative:

I was on an IFR flight plan en route from mtw to 3BB. This is a small airport in the suburbs of detroit, mi. When I arrived in the pattern at 3BB there were 2 other aircraft (single engine cessnas) in the pattern doing takeoffs and lndgs. I entered the downwind leg and radioed my entry. I then called my base leg over the radio and heard one of the other aircraft call downwind. Then the second plane called its downwind leg. I then called my final approach and heard a pilot call his base leg very shortly after. I then saw a plane coming at a 90 degree angle toward me on my left and above me. My downwind must have been longer than his. I had no course but to continue my landing glide path. I could not climb or turn to avoid the aircraft as there were other aircraft in the pattern. I landed without problems. The aircraft I avoided called a go around which I felt was appropriate. I did not feel there was really any extreme possibility of a collision. On arrival in the FBO office area the person behind the counter was angry. She could only hear the student pilot call a go around and had no visual reference to what happened in the air. She verbally attacked me because the student had to go around. I felt I was in the pattern at a lower altitude and on final approach. It is my opinion I was cut off by the other aircraft as he should not have turned base until he saw me on final. It is my opinion I did not cut anyone off but did what I considered safe and prudent to avoid collision with the other aircraft.

Original NASA ASRS Text

Title: NMAC BTWN 2 SMA'S AT NON TWR ARPT.

Narrative: I WAS ON AN IFR FLT PLAN ENRTE FROM MTW TO 3BB. THIS IS A SMALL ARPT IN THE SUBURBS OF DETROIT, MI. WHEN I ARRIVED IN THE PATTERN AT 3BB THERE WERE 2 OTHER ACFT (SINGLE ENG CESSNAS) IN THE PATTERN DOING TKOFS AND LNDGS. I ENTERED THE DOWNWIND LEG AND RADIOED MY ENTRY. I THEN CALLED MY BASE LEG OVER THE RADIO AND HEARD ONE OF THE OTHER ACFT CALL DOWNWIND. THEN THE SECOND PLANE CALLED ITS DOWNWIND LEG. I THEN CALLED MY FINAL APCH AND HEARD A PLT CALL HIS BASE LEG VERY SHORTLY AFTER. I THEN SAW A PLANE COMING AT A 90 DEG ANGLE TOWARD ME ON MY L AND ABOVE ME. MY DOWNWIND MUST HAVE BEEN LONGER THAN HIS. I HAD NO COURSE BUT TO CONTINUE MY LNDG GLIDE PATH. I COULD NOT CLB OR TURN TO AVOID THE ACFT AS THERE WERE OTHER ACFT IN THE PATTERN. I LANDED WITHOUT PROBS. THE ACFT I AVOIDED CALLED A GAR WHICH I FELT WAS APPROPRIATE. I DID NOT FEEL THERE WAS REALLY ANY EXTREME POSSIBILITY OF A COLLISION. ON ARR IN THE FBO OFFICE AREA THE PERSON BEHIND THE COUNTER WAS ANGRY. SHE COULD ONLY HEAR THE STUDENT PLT CALL A GAR AND HAD NO VISUAL REF TO WHAT HAPPENED IN THE AIR. SHE VERBALLY ATTACKED ME BECAUSE THE STUDENT HAD TO GAR. I FELT I WAS IN THE PATTERN AT A LOWER ALT AND ON FINAL APCH. IT IS MY OPINION I WAS CUT OFF BY THE OTHER ACFT AS HE SHOULD NOT HAVE TURNED BASE UNTIL HE SAW ME ON FINAL. IT IS MY OPINION I DID NOT CUT ANYONE OFF BUT DID WHAT I CONSIDERED SAFE AND PRUDENT TO AVOID COLLISION WITH THE OTHER ACFT.

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.