Cher Gilles,
I do quote from MOSQUITO by Sharp and Bowyer (
https://www.abebooks.com/book-search...el-j-f-bowyer/), pg 348:
"Periodically, some Mosquito Squadrons carried out special duty flights. On one Squadron Leader Lisson and F/O Franklin of 418 Squadron were sent to Toulouse area, and failing, proceeded another 400 miles to Alghero. After a second attempt, they made a supply drop on 6 March (1944), when heading home."
418 Squadron's ORB found here below do give us some clues. This first sortie was carried out on the night of 3/4 March (Operation Salvaza?):
https://discovery.nationalarchives.g...ils/r/D8403989
Who claimed a Fw 190 D long nose around Toulouse on the night of 6/7 March 1944 was 1st/Lt. Lou Luma (whom you know from the Arado 96B that you found the wreckage).
Could it be that the sound of machine gun noises may have been German Flak? You see that there were RAF Intruders flying around that night nearby, at least two machines from 418 Squadron....so, the young German may have fired at the Ju 88 thinking they were actually hitting a Mosquito....Maybe this is the path to look at or follow up.
Hope this is of assistance Gilles....A busy night around your town, Toulouse.
I wonder what was Operation SALVAZA carried out by S/L Lisson, from 418 Squadron...
Most humbly yours, your friend,
Adriano