According to FAA webpage:
Two Learjets, radio call sign "Pepe" tokk off from San Julián at 10:07, takinf the route Río Gallegos-Falklands- Río Gallegos-San Julián, arriving to Falklands at 10:30 in a flight level 350 (I think the time is obviously wrong. Probably 11:30) Being at a position 51º 30' S/58º 30' W they contacted Malvinas radar. Number 2 saw two missiles coming almost horizontally. Both planes opened the formation avoiding them. Malvinas informed no plane was in the air at the moment, so the missiles had to come from a ship (HMS Coventry or HMS Broadsword). They went down hardly coming back home. They landed at Río Gallegos at 12:57. And from there, they finally landed at San Julián at 17:15.
Another two Learjet took off from Comodoro Rivadavia at 10:10 with a radio call sign "Litro". Litro 2 aborted shortly after due to mechanical problems. Litro 1 arrived at Falklands at 11:45. Flying at FL 400, under radar control they took a 90º course going away around 30 miles. Then radar ordered to came back as fast they could. They began a hard right turn. The observer could apreciate a SAM really close to the wing extreme. Then went down fast and returned home landing in Río Gallegos at 13:10 cause Comodoro Rivadavia was close due to bad weather.