This NZ Yak-52 crash was suspected to have been caused by FOD - a screwdriver was found out n the wreckage.
https://www.caa.govt.nz/public-and-m...ak-accident-2/
I have a few hours in a Yak-52 and I absolutely agree with LeadSled’s comments. A delight to fly but like all high performance aircraft, it can ‘bite’ the inexperienced or the foolhardy.