Cracks in the concrete gravity base structure (GBS) for Statfjord A were discovered in 1976 during maximum submersion as part of the operation to mate with the topside. This damage had arisen as a result of excessive temperature fluctuations and a weak section in the concrete, and took two months to repair.
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SAR helicopter in place
A search and rescue (SAR) helicopter has been stationed permanently on Statfjord B since 1983 as part of the emergency response organisation.