I can see the problem, you have a map saying it is on the Lively Island area
HMS Coventry says
Within hours of the attack on the Narwal, with Coventry now beginning more shore bombardment, Broadsword passed contact information on a target moving across East Falkland (Broadsword’s radar had far superior moving target indication against ground clutter); Coventry fired another Sea Dart and downed SA.330L Puma AE-505 of Combat Aviation Battalion 601 over Choiseul sound, 13 nautical miles away from the ship. The Puma had been tasked with finding the Narwal after the trawler had made a distress call during the SHAR attack. This was the first confirmed successful engagement by the Sea Dart system, as the impact and explosion were clearly visible, though no trace of the Puma’s wreckage or the three crew were ever found. Confidence in the Sea Dart system increased.
https://www.hmscoventry.co.uk/d118/falklands/
Then you have the location in the Narwal report, which infers the island of the lions, which is Sealions?
The Helicopter Puma AE-505 that was shot down when they were going to the place where the fishing boat NARWAL was sinking to rescue the survivors, was shot down by a Sea Dart missile fired from the frigate Coventry on May 9, 1982, the remains of the personnel and The aircraft were not found because they fell into the sea in the vicinity of the Isla de los Leones Marinos. They were decorated with the medal "The Argentine Nation for Valor in Combat" (Post Mortem)
https://www.malvinense.com.ar/smalvi/0109/1084.html