As part of the BPSC preservation process, all lay up vessel required t o be carry out underwater anchor and ship hull on 6 monthly basis. On last underwater inspection by Borneo Subsea notice that Anchor chain twisted and kinked from the sea bed to water surface. As part of constancy plan BPSC engage AHTS to operate and de-kink the anchor chain.
Today 15th July 2010 morning BPSC conduct a RA and JHA briefing with was discuss earlier with all parties involve (BPSC top management, BPSC key personnel, Barge operator, AHTS operator and contractors). As a good start off the barge and AHTS already inform to alongside Gandria early morning. BPSC anchor experts (me and Syed) with the owner representative arrive Gandria around 0900 hrs.
As done on Hilli operation, Air hose from gaya 2 barge connected to starboard anchor windlass. After confirm of the windlass operation, the starboard anchor lowered to Lewek Swift deck. The Lewek Swift then drop the anchor 3 shackle in water.
The air hose later shifted to port side windlass, to operated current holding anchor. The chain pulled by the AHTS on to their deck and cut the canter shackle. The AHTS start their de-kinking task after let go he ship side chain.
After more than 1 hour de-kinking operation by the AHTS, we found a big ball at 5th kanter shackle. It was big task for the AHTS. They tried de-kinking the ball by pulling and slacking method. At 1 time their Ballard winch had hydraulic leak problem in their engine room. The whole Operation was delayed due to repairing the hydraulic leak.
As the ATHS winch repair the decided to reconnect the chain to the ship and lift the chain using ship windlass. At 2200 hrs the chain reconnected to ships using new spare kanter shackle. The full 12 shackles of anchor chain then slowly lifted by the ship windlass using air. It took about 4 hours to fully lift the chain with clearing some of the kink in between.
The air connection shifted to starboard windlass again to lay the starboard anchor 11 shackles on deck. Lewek Swift winched their towing wire to Gandria and connected to the port Ballard. While the ATHS tow slowly within 0.4 knots, the starboard anchor lowered slowly until 11th kanter shackle come to deck.
The whole operation took about 24 hours. Everyone come ashore with full tiredness and sleepiness.
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