Admiralty. Archers powerplant continued to give trouble, particularly the electro-magnetic clutches. If the clutch disengaged the engines would race at high revs and had to be shut down in order for repairs to be made. This was particularly problematic if aircraft were flying or there were enemy submarines nearby. On 26 June, Archer departed Freetown bound for Bermuda, where she was to undergo repairs. Work started on 15 July and took some fourteen weeks to complete. Archer then sailed to New York City where she joined Convoy UGS 2 which departed New York on 2 November bound for Casablanca, Morocco. She ferried 30 Curtiss P-40 Warhawks and US personnel to Casablanca. She then sailed to Gibraltar to join convoy MKF 3 which departed Gibraltar on 27 November. When Archer arrived in the UK, she was sent to Liverpool for another refit which commenced on 4 December. Her flight deck was lengthened at this refit. On 19 February 1943, Archer embarked nine Martlet Vs of 892 Squadron and on 28 February embarked nine Swordfish Mk II aircraft of 819 Squadron. She was inspected by the King the following day and then sent to shipyards on the Clyde and at Belfast for further rectification work. In early May, Archer joined the 4th Escort Group off Iceland on convoy support operations. She joined Convoy ONS 6 on 9 May and then Convoy ON 182 on 12 May, leaving these convoys on 14 May. On 21 May she joined Convoy HX 239. On 23 May, a Swordfish II of 819 Squadron sank U-752 with a Rocket Spear, a new weapon, at . The thirteen survivors were rescued by . U-752 was the first German U-boat to be sunk with rockets and only the second to be sunk by aircraft that operated from an escort aircraft carrier. Archer left Convoy HX 239 on 24 May. She then joined Convoy KMS 18B on 26 June and left that convoy on 3 July. She was then withdrawn from the 4th Escort Group to take part in exercises in the Irish Sea. Following these exercises, she was sent to the Bay of Biscay on anti-submarine patrol duty, but was withdrawn from this after a week due to a lack of U-boat activity and further defects. She arrived at Devonport on 27 July and work commenced the following day. Archer then sailed to the Clyde for engine repairs, arriving