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Precis File
SHIP NAME: Mariella KEY: NUM. ENTRIES: 3
source OTTO
type A
volume
material
dead
link

While undergoing main engine repairs in Weymouth Bay, the 1986 built, 77,769 dwt Mariella dragged its anchor in heavy weather on 10 January. A tug provided assistance, while the lifeguard was also on standby. When a line was attached to the vessel from the tug, it was 60m from grounding and had only 1 m under the hull. It was eventually brought into Portland deepwater harbour.


source MAIB
type A
volume
material
dead
link

On the evening of 9 January 2008, the product tanker Mariella was brought up to 8 shackles on the port anchor in the Bad Weather Refuge Anchorage in Weymouth Bay. The ship had been arranged to berth in Portland harbour to make permanent repairs to a fracture in the hull and to replace the main engine turbo charger, which had failed the day before. The turbo charger had been locked, which caused the ship’s speed to be reduced to dead slow ahead, giving a maximum speed of about 4.5 knots. The wind overnight at the anchorage was south-west force 6/7. However, the forecast for 10 January was south-west force 7 to severe gale 9, occasionally storm force 10, and decreasing force 4 at times.

At 0936, the ship began to drag her anchor to the north and toward the shoreline. The officer of the watch notified the master and the engine room. At 0951, the engine was started and the anchor party began weighing anchor. Following a temporary suspension of operations due to a hydraulic line failure, the anchor was aweigh at 1039. With limited engine power available, the master was unable to manoeuvre his ship to the south and she was set towards other ships in the anchorage and towards the lee shore. At 1111, the port anchor was let go to 9 shackles, which arrested the ship’s drift at about 2 cables from the 10 metre contour line.

The master requested the assistance of a harbour tug, which was used to hold the ship’s head into wind while he attempted to let go his starboard anchor. The coastguard mobilised the salvage tug Anglian Earl, which was alongside in Portland harbour. At 1254, Anglian Earl made fast her tow line fast to the ship; the two anchors were weighed and the tug and tow proceeded into Portland harbour. Mariella was made fast to the Deep Water Berth at 1700.


source CTX
type C
volume
material
dead 0
link

Altho the ship technically still had some power, CTX is calling this a Loss of Power casualty. Dead Slow Ahead is about 3 pct full power. It is not enough to do anything as this casualty shows.

MAIB blames the Captain for not putting out more cable, but does not mention the lack of redundancy.

Sounds like the ship was in ballast, but we need confirmation.

Equasis thinks the ship switched to Tuvalu flag 2008-01-01 and was renamed Theresa Baltic, but MAIB would have on-board, so the switch must not have been completed at the time of the casualty.