Link here to preliminary report:
Preliminary Report: Accident Rollason D.62B Condor, (EI-BDX) Duncormick, Co. Wexford 6 October 2019 Report 2019-011 | AAIU.ie
Extract: “The Investigation contacted a number of witnesses and obtained details of their observations of the aircraft, from a variety of vantage points, and at various stages of the accident flight. One witness observed the aircraft some minutes prior to the accident and noted that the aircraft executed a number of consecutive roll manoeuvres. In addition, several witnesses reported hearing waxing and waning engine sounds, as the aircraft manoeuvred. Other witnesses reported that immediately prior to the accident the aircraft executed three loop manoeuvres. During the descent from the apogee of the third loop, two loud noises (variously described as bangs or cracking sounds) were heard, parts were seen to separate from the aircraft, and the aircraft began spiralling downwards.”