Dear Ludovico,
Sorry for the confusion. I meant the loss of Balbo, because the Italian report states: "unspecified reasons" as the cause of his loss (assuming my translation of the Italian is correct!).
Perhaps also relevant to the activities of this morning: at 04:06 on 4 March Castelvetrano airfield asked if Tunis and Gamart airfields were serviceable. The British Y-Service then noted the arrival at base X1W (probably in Tunisia) of an unknown number of Mc. 200s at 07:00. They had come from Castelvetrano. Two Mc. 200s flew from X1W back to Castelvetrano between 16:10 and 16:50.
Unfortunately it seems that the British didn't hear anything about the morning mission itself.
Cheers,
Andrew A.
Air War Publications -
www.airwarpublications.com