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Precis File
SHIP NAME: Prospero KEY: NUM. ENTRIES: 3
source OTTO
type A
volume
material
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The 2000-built 18,119 dwt chem + oil tanker Prospero, bound for St Petersburg, was assisted to Hanko by tug Hector following engine problem.


source MAIB
type A
volume
material
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The pod control system failed on 19 Sep 2006, while Prospero was on passage in the Gulf of Finland; the crew experienced a loss of steering control, and an alarm had sounded. The crew reported the inciednt and SSP service engineers, together with a DNV surveyor, attende the ship.

The faulty unit (the gauss transmitter) was sent ashore but, because of lack of available spares, it was necessary to effect temporary repairs to allow the vessel to continue in service.


source CTX
type D
volume N
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This ship has a single pod, diesel/electric propulsion system, controlled by a radio link (the gauss transmitter) to the pod. This was the first? of at least 4 loss of pod control incidents in about six months. The MAIB excerpt is from the UK investigation of a berth ramming 2006-12-10, at Milford Haven, caused by the pod control system going crazy. This was the second recorded incident.

As far as CTX can tell the makers Siemens/Schottel never got to the bottom of these problems. The "fix" the ship came up with: when the system goes haywire, is to reboot the software by shifting control to the engine room and then immediately back to the bridge.