In the Falklands War, she was the flagship for the recovery of South Georgia, participating in the first ever anti-submarine operation successfully conducted exclusively by helicopters.

[1] In the mid-1970s, the Royal Navy removed 'B' turret and replaced it with four Exocet missile launchers to give her a greater anti-ship capability.

In 1976 her commission included a visit to Stockholm, where she represented the Royal Navy at the wedding of the King of Sweden.

[4] Antrim fired her Sea Slug missile system at an Argentine Air Force Douglas A-4 Skyhawk without hitting it.

This entailed removing her Sea Slug launcher and extending her deck aft to allow the installation of a new, larger hangar.