U-161 was attacked and sunk by a PBM of VP-74 on September 27, 1943

Seaplane base at Aratu Brazil - VP-74 PBMs on the ramp - September 13, 1943

 

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VP-74 ASW-6 Report from LTJG Patterson's attack
Photographs taken at the scene of action
10th Fleet Photo Form
Photographs taken on the arrival of LTJG Patterson's PBM at Aratu, Brazil