Narrative:

While on an IFR flight plan and executing the ILS 17 approach to circle to land runway 27; we encountered an airplane conducting acrobatic maneuvers (loops; rolls) directly over the airport at our flight altitude; above and below. A NOTAM was issued that the 'acrobatic box' was active and we were aware of it. Reviewing the NOTAM we learned that the FAA had issued a waiver for pilots to conduct acrobatic flight within one mile from the center of the airport between 700 and 4300 feet AGL. This was not a public airshow. There is a direct conflict between IFR and VFR aircraft. No separation exists.this is an unsafe waiver - should be withdrawn.sec. 91.303 -- aerobatic flight.no person may operate an aircraft in aerobatic flight--(a) over any congested area of a city; town; or settlement;(b) over an open air assembly of persons;(c) within the lateral boundaries of the surface areas of class B; class C; class D; or class east airspace designated for an airport;(d) within 4 nautical miles of the center line of any federal airway;(e) below an altitude of 1;500 feet above the surface; or(f) when flight visibility is less than 3 statute miles.for the purposes of this section; aerobatic flight means an intentional maneuver involving an abrupt change in an aircraft's attitude; an abnormal attitude; or abnormal acceleration; not necessary for normal flight.

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Original NASA ASRS Text

Title: C182 pilot on an IFR flight plan executing a circling approach noticed an aerobatic aircraft flying acrobatic maneuvers directly over the airport above and below their flight altitude. Reporter stated there was a waiver in place for the acrobatic box over the airport; but feels it was unsafe and should have been modified or withdrawn.

Narrative: While on an IFR flight plan and executing the ILS 17 approach to circle to land Runway 27; we encountered an airplane conducting acrobatic maneuvers (loops; rolls) directly over the airport at our flight altitude; above and below. A NOTAM was issued that the 'acrobatic box' was active and we were aware of it. Reviewing the NOTAM we learned that the FAA had issued a waiver for pilots to conduct acrobatic flight within one mile from the center of the airport between 700 and 4300 feet AGL. This was not a public airshow. There is a direct conflict between IFR and VFR aircraft. No separation exists.This is an unsafe waiver - should be withdrawn.Sec. 91.303 -- Aerobatic flight.No person may operate an aircraft in aerobatic flight--(a) Over any congested area of a city; town; or settlement;(b) Over an open air assembly of persons;(c) Within the lateral boundaries of the surface areas of Class B; Class C; Class D; or Class E airspace designated for an airport;(d) Within 4 nautical miles of the center line of any Federal airway;(e) Below an altitude of 1;500 feet above the surface; or(f) When flight visibility is less than 3 statute miles.For the purposes of this section; aerobatic flight means an intentional maneuver involving an abrupt change in an aircraft's attitude; an abnormal attitude; or abnormal acceleration; not necessary for normal flight.

Data retrieved from NASA's ASRS site 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.