Manweiller ACRO SPORT II accident near Middletown, OH
On September 20, 2014, a Manweiller ACRO SPORT II (airplane) was involved in an accident near Middletown, OH. 2 people died. Damage to the aircraft: substantial.
- Date
- September 20, 2014
- Place
- Middletown, OH
- Aircraft
- Manweiller ACRO SPORT II · Airplane
- Injuries
- 2 fatal, 0 serious, 0 minor
- Damage
- Substantial
- Position
- 39.418°N, 84.362°W
- NTSB ID
- 20140920X14503
Official records · CEN14LA507
- Public docket: reports, statements and exhibits from the investigation
Air traffic control records
- Communication Summary - Mary Runnebaum: Document (PDF), on ntsb.gov
- Communication Summary - Engine: Document (PDF), on ntsb.gov
NTSB summary
HISTORY OF FLIGHTOn September 20, 2014, about 0857 eastern daylight time, an experimental amateur-built Manweiler Acro Sport II airplane, N94SM, impacted buildings and terrain near Middletown, Ohio, and a ground fire subsequently occurred. Both airplane occupants were private pilots and were fatally injured. The airplane sustained substantial damage. The airplane was registered to and operated by Biplane Crazy LLC under the provisions of 14 Code of Federal Regulations Part 91 as a personal flight. Day visual flight rules conditions prevailed for the flight, which did not operate on a flight plan. The local flight originated from the Butler County Regional Airport-Hogan Field (HAO), near Hamilton, Ohio, about 0830. A Federal Aviation Administration (FAA) inspector interviewed a witness, who was outside in her driveway, when she heard the aircraft approaching. She said it was at a lower altitude than she normally sees aircraft in the area. As it was coming toward her from east to west it started to pitch, nose up, into what she said looked like a loop. As it got to the top of the looping maneuver, and an instant before it started down, the sound of the engine stopped. The aircraft then entered a spiralling, spinning maneuver, which continued until she lost sight of the aircraft behind some trees. She then heard the sound of an engine, consistent with the pilot adding engine power, followed immediately by the sound of impact. She told her husband to call 911 and report the accident. She then "grabbed" a neighbor, who is an EMT, and went to the crash site to try to help. The ai
Probable cause
The failure of the flying pilot to maintain airplane control after an aerodynamic stall/spin occurred during the aerobatic maneuver following a reported intermittent loss of engine power for reasons that could not be determined during postaccident examinations.
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Source: NTSB aviation accident database (US government, public domain). Findings may be preliminary or later revised by the NTSB. Not a complete global record.