Hi Gunnar,
It was not usual for the Germans to let go of such a victory. Knowing the numerous examples of trying to pick up Allied planes that were shot down and their personnel by the Flandern Flottilles, and that were quite a lot believe me I even have several photo's of such actions, it doesn't seem logical.
It is however logical that they will have opened fire on the attacker. However as I said there was a lot of fog that day. It is very good possible that they never knew that they did shoot it down.
Also the following days there is no mentioning in the KTB that they found a French plane or that French officers washed ashore.
I bet they never knew it, otherwise it would have been mentioned as everything else worth mentioning concerning aerial warfare above the sea is.
Best from Regulus
Very interesting for me as well as I just am finishing my photobook on the torpedoboats and destroyers of the Marinekorps Flandern

Thanks !