Real Life Incident: Anchoring Kerfuffle

A tanker arrived at a busy anchorage for bunkering and provisions. With pilot on board, they prepared to drop the port anchor at the designated anchorage. After preparations were completed the port anchor was let go on the brake, with instructions to secure it with seven shackles in the water. During the operation the anchor and chain took on too much momentum and the brake could not stop the outflow of chain. The anchor was presumed lost.

Having consulted with the pilot, and in view of the surrounding traffic, the Master instructed the anchoring team to prepare and lower the starboard anchor with the windlass in gear in order to safely complete the anchoring operation.

Anchoring Kerfuffle — Image for representation purpose only

The port anchor chain was then heaved up. It was found that the anchor was not, in fact, lost; the bitter end had remained secured. However, when the port anchor was heaved up, it could not be secured because it had become entangled with the starboard anchor chain.

The company investigation found that the port anchor brake was not working properly; it did not move before the brake reached the 90% open position. If the equipment had been in good condition, the anchor chain could have been controlled.

Also, the investigation found that after the port anchor chain paid out uncontrollably, the actual condition of the port anchor was not correctly assessed/communicated to the bridge. Had this been done, the starboard anchor would not have been deployed and the incident would have been avoided.

Lessons learned

Anchor brake maintenance is a crucial element in safe operations. The uncontrolled descent of an anchor chain can not only pose a significant risk of losing an anchor, but also poses a lethal hazard to crew.
During and after an incident it is sometimes difficult to assess and communicate the state of affairs – yet this is what is needed for ships’ leaders to make the right decisions going forward.

Reference: The Nautical Institute

Disclaimer :
The information contained in this website is for general information purposes only. While we endeavour to keep the information up to date and correct, we make no representations or warranties of any kind, express or implied, about the completeness, accuracy, reliability, suitability or availability with respect to the website or the information, products, services, or related graphics contained on the website for any purpose. Any reliance you place on such information is therefore strictly at your own risk.

In no event will we be liable for any loss or damage including without limitation, indirect or consequential loss or damage, or any loss or damage whatsoever arising from loss of data or profits arising out of, or in connection with, the use of this website.

Do you have info to share with us ? Suggest a correction

About Author

Marine Insight News Network is a premier source for up-to-date, comprehensive, and insightful coverage of the maritime industry. Dedicated to offering the latest news, trends, and analyses in shipping, marine technology, regulations, and global maritime affairs, Marine Insight News Network prides itself on delivering accurate, engaging, and relevant information.