Zidell Repairing Three Coast Guard Vessels At Total Cost Of $1 Million

Three U.S. Coast Guard ships were moored at docks of Zidell Explorations, Inc., Portland, Ore., recently for regular maintenance and repair. One, the buoy tender Iris will also have its entire electrical system replaced, necessitated by a fire at sea that caused extensive damage to the engine room.

All told, the three repair jobs are valued at over $1 million to the company's Marine Repair Division.

Plane Tree and Iris are sister ships, buoy tenders of the 180-foot class, 1,025 tons each, with single screws. Iris, while working with a buoy, took a wave from the stern which swamped the engine room, short-circuited the electrical system, and caused an oil-fed fire. The ship had to be towed to port.

Confidence, a 210-foot cutter, went into drydock two days after Plane Tree floated free to be tied up at Zidell's docks for further fitting.

Much of the work to be done on Plane Tree and Iris consists of general repair and replacement of sea-worn parts and fittings.

Both ships will have cargo hoisting gear, anchors, and anchor chains overhauled, along with renewal of watertight doors and hatches and repair or replacement of various parts of the fuel systems. Plane Tree will also have its rudder and pintle bushings replaced, and warping winch overhauled, the Fathometer transducer replaced, and other electronic repairs and servicing carried out. Total cost is estimated around $350,000.

Iris, in addition to regular maintenance and replacement of worn parts, will require overhaul of ventilation fan motors, both main generators and service generators. All asbestos insulation in the engine room will be replaced, as will the fire-damaged deck covering and switchboards. Iris is expected to be undergoing repairs for many months, as the switchboards must first be designed, then Coast Guard-approved and fabricated.

Cost of general repairs will be about $262,000, with design of the switchboard and replacing of the entire electrical system estimated, at this time, to exceed another $250,000.

Confidence will have regular maintenance work done on the hull, anchor chains and boat davits overhauled, sprinkler system modified, new galley ranges installed, repairs made to the controllable-pitch propeller mechanism, propeller blades inspected and tested, and considerable modification of the electronic systems carried out. Cost will be around $250,000.

Maritime Reporter Magazine, page 53, Oct 15, 1980

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First published in 1881 Maritime Reporter is the world's largest audited circulation publication serving the global maritime industry.