Antelope took part in the Falklands War, arriving in the area of operations on 21 May 1982. Two days later, while on air defence duty at the entrance to San Carlos Water, protecting the beachhead established two days before, she came under attack by four Argentinian A-4B Skyhawks of Grupo 5. The first pair attacked from astern, with the flight leader breaking off his attack after one of Antelope's Seacat missiles exploded under the port wing of his aircraft.
The pilot, Captain Pablo Carballo, managed to nurse his aircraft back to Rio Gallegos. The second aircraft on this flight pressed home his bomb run and put a 1,000-pound bomb in Antelope's starboard side, killing one crewman, Steward Mark R. Stephens. The bomb did not explode and the Argentinian aircraft was damaged by small arms fire. The second pair of Skyhawks attacked minutes later from the starboard quarter. During this attack, one of the Argentinian jets, piloted by First Lieutenant Luciano Guadagnini, was hit by the ship's Oerlikon 20 mm cannon before colliding with Antelope's main mast and disintegrating. Guadagnini had released the bombs before being brought down, and one bomb penetrated Antelope's hull amidships. However, like the first bomb that hit the ship, it failed to explode.
Antelope fired a Seacat at what she believed to be a fifth attacker, but this was Captain Carballo, trying to establish if his aircraft was fit to fly. The missile missed, but passed less than 10 metres (33 ft) from Carballo's cockpit.[2]
After initial damage control efforts, Antelope proceeded to more sheltered waters so that two bomb disposal technicians from the Royal Engineers could come aboard and attempt to defuse the two unexploded bombs. One of the bombs was inaccessible because of wreckage; the other had been damaged and was thought to be in a particularly dangerous condition. Three attempts by the bomb disposal team to withdraw the fuse of this bomb by remote means failed.[3]
A fourth attempt using a small explosive charge detonated the bomb, killing Staff Sergeant James Prescott instantly and removing an arm of Warrant Officer John Phillips, the other member of the bomb disposal team.[4]
The ship was torn open from waterline to funnel, with the blast starting major fires in both engine rooms, which spread very quickly. The starboard fire main was fractured, the ship lost all electrical power, and the commanding officer, Commander Nick Tobin, gave the order to abandon ship. Tobin was the last person to leave the ship; about five minutes after his departure, the missile magazines began exploding.
Explosions continued throughout the night. The following day Antelope was still afloat, but her keel had broken and her superstructure melted into a heap of twisted metal. Antelope broke in half and sank that day. TV and still pictures of Antelope's demise became some of the iconic images of the Falklands War and appear repeatedly in histories of the event.[5]
Corporal Alan White received a commendation from the Task Force Commander, Admiral Sir John Fieldhouse, for his part in rescuing 41 crew from Antelope using a Mark 2 LCVP, one of four carried by the assault ship Fearless. The landing craft, Foxtrot 7, is now located in the Royal Marines Museum in Portsmouth, with detailed accounts from Corporal Alan White of the missions he took part in, including the landings at San Carlos.[6]
In January 2002, a diving team from the frigate Montrose replaced the naval ensign on Antelope. The wreck is designated as a prohibited area under the Falkland Islands Protection of Wrecks Act.[7][8]
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