Narrative:

Me and my private pilot student were coming back on training flight from local practice area and we stayed in traffic pattern (2 times touch and goes). We were ready to land; and ATC cleared us to land on runway 27L (left traffic pattern). We started our base turn a bit wide; about 1.5 miles from the runway; about 900 ft AGL and during our descent in final leg; we noticed that some other cessna (152 or 172) was cutting off below us (turning from base to final) on the same runway. I informed ATC immediately that we will go around. ATC repeated that we were cleared to land; and I told them that we will go around because there is another airplane below us. Other cessna did go around as well and made short traffic pattern/approach (ATC approved) and did landing before us (he was in my sight all the time). Weather was clear and visibility good; but it was dusk so was kind of difficult to separate aircraft lights from building/car lights on the ground. There was a quite a lot of traffic in pattern and other landing traffic as well; so good visual scanning of every pilot would help to avoid these situations; and maybe ATC could help out as well by calling the base turn for pilots; if they report 'looking for traffic' when cleared to land behind someone (like for example 'you are number 2; follow cessna in downwind').

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Original NASA ASRS Text

Title: A Flight Instructor at SEE reported a near miss with an unreported aircraft at 900 FT on final. Both aircraft executed go arounds.

Narrative: Me and my Private Pilot student were coming back on training flight from local practice area and we stayed in traffic pattern (2 times touch and goes). We were ready to land; and ATC cleared us to land on Runway 27L (left traffic pattern). We started our base turn a bit wide; about 1.5 miles from the runway; about 900 FT AGL and during our descent in final leg; we noticed that some other Cessna (152 or 172) was cutting off below us (turning from base to final) on the same runway. I informed ATC immediately that we will go around. ATC repeated that we were cleared to land; and I told them that we will go around because there is another airplane below us. Other Cessna did go around as well and made short traffic pattern/approach (ATC approved) and did landing before us (he was in my sight all the time). Weather was clear and visibility good; but it was dusk so was kind of difficult to separate aircraft lights from building/car lights on the ground. There was a quite a lot of traffic in pattern and other landing traffic as well; so good visual scanning of every pilot would help to avoid these situations; and maybe ATC could help out as well by calling the base turn for pilots; if they report 'looking for traffic' when cleared to land behind someone (like for example 'you are number 2; follow Cessna in downwind').

Data retrieved from NASA's ASRS site as of April 2012 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.