The "Saratoga" was ordered to depart for home for a refit by 19 May and Somerville wanted to mount one more attack as she was leaving the Indian Ocean. He chose the naval base and oil refinery at Surabaya, Java (Operation Transom), and the distance from the newly renamed East Indies Fleet's base at Ceylon required refuelling at Exmouth Gulf on the western coast of Australia before the attack. The necessity to attack from the south, across the full width of Java, meant that the target was outside the Barracuda's range and 810 and 847 Squadrons were replaced by the 18 Grumman Avengers of 832 and 845 Squadrons for the mission. Early on the morning of 17 May, the ship launched all 18 Avengers, escorted by 16 Corsairs. One Avenger crashed on take-off and an American Avenger was shot down over the target; only one small ship was sunk, and little damage was done to the refinery. The "Saratoga" and her escorts separated after refuelling again in Exmouth Gulf and the East Indies Fleet was back in Trincomalee on 27 May where No. 21 Wing reembarked.