Investigation Report
Electrical Failure Disabled Thrusters and Caused Vessel Drift
03-29-2011 04:00 G16770 GC/641 Other
- BSEE
- Investigation Report
- Unknown
- Loss of station keeping
- Dynamic positioning
- Upstream oil and gas
- Vessel
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Summary
Investigation of an electrical failure aboard Discoverer Clear Leader that disabled thrusters and allowed a five-foot drift off station. Power returned to five thrusters after approximately 50 seconds. The crew closed middle pipe rams following a yellow alert. A circuit card was suspected, with investigation still pending; no agency recommendations were made.
Classifications: Loss of station keeping; drive-off; drift-off.
Classifications: Dynamic positioning; DP; DP operations.
Classifications: Upstream oil and gas; oil and gas extraction; upstream petroleum.
Classifications: Vessel; aboard ship; onboard vessel.