Lights with trail over Bignicourt-sur-Marne

Summary

On March 9, 1996, a private pilot reported one or two white lights along with a green and a red one moving across the sky for about 40 minutes. The lights left a luminous trail behind them. The witness quickly contacted the gendarmerie, but by the time officers arrived, nothing was visible. No further details about the phenomenon could be obtained. GEIPAN classified the case as C, meaning no clear explanation was reached.