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RSK-1042/ALARP acceptance

Propose ALARP acceptanceGate, 3 of 4 complete

✓

RationaleComplete

BIU≡

Full replacement of Section 4B would require a 14-day production shutdown at an estimated cost of USD 4.2M against a residual exposure assessed at USD 310k. Inspection frequency has been increased to quarterly UT scanning, cathodic protection has been upgraded and a pressure de-rate applied. Further reduction is grossly disproportionate to the benefit gained.

Why is this risk as low as reasonably practicable?

✓

Residual riskReviewed

Treated (residual) risk scoreRead-only

Residual levelMajor

✓

Evidence2 files

Click here to upload filesMinimum one file, assessment docs, study extracts, inspection reports

Cost-benefit-assessment_Section4B.pdf1.8 MB · 04-10-2025

Fitness-for-service-study_2025.pdf3.2 MB · 04-10-2025

Sign-offAwaiting send

ALARP approver

VP, President's direct report or Leadership Team member

Linked mitigation actions

✓Increase UT scanning to quarterlyComplete

✓Upgrade cathodic protectionComplete

✓Apply 15% pressure de-rateFormally accepted

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