D PRIVACY ACT MATERIAL REMOVE by the BAIROKO and proceeded to the zero island to await Dr. Siz who was to fly to the island by helicopter after supervising the re- moval of filters from the drone planes at Eniwetok. Dr. S@BSF arri- ved at 1050, and flags were placed at the aenter of the causeway marking the limit of safety for the tank controlling helicopter. fhe helicopter in which the tank operator, was riding was forced down by engine trouble on another island, and caused some delay before he could be flownin for the operation. ready. &At 1130 the operation was The tank that had been stationed in the revetment during the test was driven manually to the causeway, and from thence: proceeded under remote control operation to the crater formed by the test weapon. The tank soon became bogged down, and efforts to get it started again were ‘unavailing. The reserve tank that had been brought up in the LCM was then sent in and successfully obtained a soil Sample from the desired point, returning to the uncontaminated end of the island. This soil sample was divided, a small portion being sent to the laboratories on the USS BAIROKO, and the remainder being taken to Eniwetok by one of the monitors. This latter sample reached Eniwetok by 1510 and was dispatched by air to laboratories in the United States, During this entire operation a standby helicopter with a monitor took up a position near the tank controlling helicopter, in order to insure that the latter would not be overexposed to radioactivity. ‘hen this plane landed to investigate the trouble with 123 . Section. ertion. PRIVACY ACT MATERIAL REMOVED i...

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