"I-41" start 2nd war patrol from Kure 19 october 1944. Boat go to patrol near Leyte. Was sunk by US destroyers escort "Lawrence C. Taylor" and "Melvin R. Nawman" 18 november 1944 in Phillipine sea.
"Ro-115" start 5th war patrol from Singapore 22 january 1945. Patrol in W from Luzon. 1 february 1945 sunk by US destroyer "Ulvert M. Moore". 4 feb Vice Admiral Miwa Shigeyoshi orders RO-115, RO-46, RO-112 and RO-113 to prepare to participate in the evacuation of the stranded pilots from the Aparri area on Luzon, Philippines. All above submarines are also ordered to land their deck gun ammunition and reserve torpedoes at Takao prior to the rescue mission.
16 feb FRUMEL decodes the following message timed 171827: "Submarines RO-112 and RO-113 left Takao on 9th and and 10th respectively and were due to arrive at Batulinao on 12th and 14th. RO-115 has not yet returned to Takao from her operating area."
So Ro-115 not return to Takao for landing himself deckgun, so was sunk in it time.
Instead Ro-115 Jap admirals send "I-372", cargo submarine. Submarine start war patrol from Yokosuka 8 feb 1945. I-372 is slated to participate in the rescue of the stranded Army pilots from Batulinao, northern Luzon, Philippines. 10 feb was damage US submarine and return to base 14 feb. Start repair 16 feb - 1 april 1945. 1 aprile start new war patrol from Yokosuka on a supply run to Wake Island.
So submarine what was attack by "SS-310" was "I-372" what was damage only. What write in "SS-310" patrol log is usually optical illusion. This illusion was many many times in all submarine fleets.
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