ship reporting anything more than shrapnel damage. In return, allied anti-aircraft fire was moderately effective with most of the attacking bombers damaged by shrapnel. In addition, one G4M crashed while attempting to land, and another was badly damaged upon landing. First Battle of the Java Sea On 25 February, Helfrich ordered all available warships to join Doorman's Eastern Striking Force at Surabaya. The Exeter and the Australian light cruiser , escorted by three British destroyers, , , and , set sail at once, leaving behind one Australian cruiser and two destroyers that were short of fuel. After they had arrived the following day, Doorman's entire force of five cruisers and nine destroyers departed Surabaya at 18:30 to patrol off Eastern Java in hopes of intercepting the oncoming invasion convoy which had been spotted earlier that morning. The Japanese were further north than he anticipated and his ships found nothing. His own ships were located at 09:35 on the following morning, 27 February, and were continuously tracked by the Japanese. Doorman ordered a return to Surabaya at 10:30, and his ships were attacked by eight bombers from the Kanoya Air Group at 14:37. They claimed to have made two hits on the Jupiter, but actually they missed the British destroyer. Just as his leading ships were entering harbour, he received reports of enemy ships to the north and Doorman ordered his ships to turn about to intercept them. Aware of Doorman's movements, the Japanese commander, Rear Admiral Takeo Takagi, detached the convoy's two escorting destroyer flotillas, each consisting of a light cruiser and seven destroyers, to intercept the Allied ships in conjunction with his own pair of heavy cruisers ( and ) which were escorted by a pair of destroyers. His heavy cruisers opened fire at long range at 15:47 with little effect. The light cruisers and destroyers closed to ranges between and began firing Type 93 "Long Lance" torpedoes beginning at 16:03. All of these torpedoes failed to damage their targets, although one torpedo hit Exeter and failed to detonate at 16:35. Three minutes later, Haguro changed the course of the battle when one of her shells penetrated the British ship's starboard aft twin four-inch gun mount before detonating in the 'B' or aft boiler room, knocking six of her boilers off-line and killing 14 of her crew. The ship sheered out of line to avoid another torpedo and slowed,