JU87 Erg.St.St 1 crashes between 1942 1943

[GOFRIDUS]

Dring the period 1942 1943 Erg.St.St.1 Ju87 Stuka were based at Nantes Airfield for advanced training. During the training to bombing they used cement bombs and the training was executed over Lac de Grandlieu at 2 or 3 km of the airfield.
An old man I saw several days ago said to me that a Junkers Ju87 crashes into the Lac de Grandlieu during a training. I am really surprised. I know only the crash of a FW190 into the Lac in 1943.July 4 ( WNr142454 9 blue -pilot R.Weiprecht);

Do you confirm accident or crash of JU87 of the unit between Oct 1942 until May 1943? After the staffel leaves Nantes.

Note also that two aircrafts of this staffel crashed at Nantes during 1942 october 17 after collision in flight (I know perfectly this event).
Many thanks