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Audit of fabrication of anchor chain for Skarv

Audit: During the period 3 – 16 October 2008 the Petroleum Safety Authority Norway (PSA) conducted an audit of BP Norge AS (BP), the supplier Single Buoy Moorings Inc. (SBM) and the sub-supplier Vicinay Cadenas S.A. (Vicinay). The audit targeted the fabrication of anchor chain for the Skarv FPSO.


The audit was conducted in two parts. The opening meeting was held at BP's offices in Oslo on 3 October 2008. A verification was held on 15-16 October 2008 at Vicinay, which manufactures the chain as a sub-supplier to SBM.

Skarv FPSO (source: BP)

Skarv FPSO (source: BP)

Background for the audit
The audit was linked to the PSA's general performance goal of conducting supervision of how the players manage factors that reduce the risk of major accidents. Mooring systems are safety-critical equipment.

The background for the audit is a number of incidents on the Norwegian shelf involving mooring systems in general.

The PSA has noted several improvements within mooring over the past year, but many incidents still occur that could be avoided if there were better systems for training and transfer of experience.

The industry must maintain its efforts to achieve a comprehensive raising of standards when it comes to mooring equipment.

Purpose of the audit
The objective of the audit activity was to make sure that the fabrication of anchor chain is managed and carried out in accordance with the petroleum regulations.

Another objective was to verify BP's system for following up suppliers.

Result of the audit
We have identified nonconformities in BP's management of the supply of anchor chain.

The audit revealed deficiencies in BP's management system for the Skarv project. BP has not followed up the management of this delivery to ensure that the project's governing documentation is sufficiently verified, understood and observed.

We have also identified three areas with potential for improvement. These are the description of the project organization, capturing knowledge from experience, as well as the involvement of classification companies.