Narrative:

I left the pattern and flew south down the lakeshore a bit and was returning. There were 2 planes in the pattern and I heard a cirrus make a call. He was coming from the west and tower told him to join the left downwind for 32. He immediately came back on the radio and said that he wanted to do a left base entry because 'he didn't want to go all the way north to enter downwind'. This was surprising since he was near great america (or so he said) and that would take you to a nice 45 entry to left downwind for 32. I called tower up and he tells me to report on a 4 mile final for 32. There was a light sport aircraft (lsa) in the pattern so the cirrus guy was told he was number 2 for 32 behind the lsa. The cirrus comes back on and tells tower that he wants to do a 270 for spacing behind the lsa. Tower tells him that the lsa is already on final and he could just turn; but if he wants to; he can do a right 270. I'm keeping an eye out for the traffic and when I establish myself on final about 4-5 miles away; make the report. I am at about 1800 ft. Traffic pattern altitude is 1500 ft. All of a sudden; I see the cirrus zoom across me about 150-200 ft above me. Almost at the same instant tower asks me if I have the cirrus in sight. I tell him that I sure do; and that he passed above me very very close. I have at this time started a turn to the right because I don't want that guy in my blind spot (and I in his) and announce to tower that I'm doing a right 360. It wasn't fun when I saw the smokestacks of the waukegan power plant appear in the windscreen when I was turning right. I climbed again; circled around; and landed.

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Original NASA ASRS Text

Title: General aviation aircraft entering straight in final as instructed at UGN experienced a conflict with another aircraft that was circling to increase separation from a preceding aircraft; reporter was forced to execute circling maneuver as well.

Narrative: I left the pattern and flew south down the lakeshore a bit and was returning. There were 2 planes in the pattern and I heard a Cirrus make a call. He was coming from the west and tower told him to join the left downwind for 32. He immediately came back on the radio and said that he wanted to do a left base entry because 'he didn't want to go all the way north to enter downwind'. This was surprising since he was near Great America (or so he said) and that would take you to a nice 45 entry to left downwind for 32. I called tower up and he tells me to report on a 4 mile final for 32. There was a light sport aircraft (LSA) in the pattern so the Cirrus guy was told he was number 2 for 32 behind the LSA. The Cirrus comes back on and tells tower that he wants to do a 270 for spacing behind the LSA. Tower tells him that the LSA is already on final and he could just turn; but if he wants to; he can do a right 270. I'm keeping an eye out for the traffic and when I establish myself on final about 4-5 miles away; make the report. I am at about 1800 FT. Traffic pattern altitude is 1500 FT. All of a sudden; I see the Cirrus zoom across me about 150-200 FT above me. Almost at the same instant tower asks me if I have the Cirrus in sight. I tell him that I sure do; and that he passed above me very very close. I have at this time started a turn to the right because I don't want that guy in my blind spot (and I in his) and announce to tower that I'm doing a right 360. It wasn't fun when I saw the smokestacks of the Waukegan power plant appear in the windscreen when I was turning right. I climbed again; circled around; and landed.

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.