While it only carried two passengers in the comfortable cabin with eight adjustable back seats, heavy packages had been loaded, apparently not very securely stowed.

In Lure at the time, L'Etoile d'Argent also carried mail bags that his father urgently took by taxi after the accident, for delivery by the normal route.

Finally, the plane was still carrying five boxes containing 239 kg of gold (i.e. 4,302,000 francs at the time) and four chamois that the Basel Zoological Garden sent to London (one injured was completed on site, the others fled).

Knowing all these data, one can imagine the large three-engined aircraft rising with difficulty in the freezing fog, not managing to get out of the opaque layer, its ascending capacities gradually disappearing, and worse, the propellers probably transformed into "sleeves of pickaxe "as the experienced pilots say, getting carried away without dragging the plane which finally collapses into the trees ...

In the accident of October 31, 1933, two occupants of the cabin were killed: the radio Camille Suply and a passenger, Dr. Werner Spoeri (pharmacist in Einsideln in Switzerland writes Michel Bregnard).