On 18 June 1979, Italian Air Force Marshal Giancarlo Cecconi, in a Fiat G.91R reconnaissance aircraft, was directed to intercept an object detected by controllers at Istrana. The object identity was never settled.

Cecconi matters because it is an Italian military intercept case with an official file — a counterpart to the aviation-interception cases, with the object identity unresolved.
Italian Air Force Marshal Giancarlo Cecconi was returning to Treviso in a Fiat G.91R reconnaissance aircraft when controllers at Istrana detected an object.
Documented
The flight and detection are documented.
Cecconi was directed to intercept the object. The event is documented in an Italian Air Force case file.
Documented
The intercept is documented.
The object identity remains disputed. No photograph is established.
Debated
The object identity is disputed.
The case rests on the pilot’s and controllers’ accounts. No photograph is established.
Unverified
Any extraterrestrial origin is unverified.
These sources do different jobs: the Italian Air Force file and the MoD summaries are the official records. Neither establishes the object identity.
The official file.
The official summaries.