Divers Replace USS Taylor CPP Hub, Avoid Dry-Docking

Posted by George Backwell
Tuesday, May 06, 2014
USS Taylor: USN photo

The Controllable Pitch Propeller (CPP) Hub of the 'USS Taylor' (FFG 50) was replaced underwater in Souda Bay, Greece, the warship having earlier suffered significant damage to its propeller blades while underway in the Black Sea, apprises Norfolk Ship Support Activity (NSSA).

"NSSA RMC Quality Assurance (QA) Department dispatched Non-Destructive Testing (NDT) technicians overseas to perform an NDT examination of the Main Reduction Gear, to assess its capabilities after the sustaining damages," said NSSA Hydraulics and Ship's Controls Branch Head Richard Krewinghaus.


Inspections of the CPP system by NSSA's Hydraulics and Ship's Controls Branch in conjunction with NSSA's QA Department and Steam and Main Propulsion Branch, indicated that the damage was isolated to the CPP hub and propeller blades.

"Underwater replacement of the hub created several unforeseen challenges, which our guys had to overcome on the fly. It was a tremendous learning experience," said Krewinghaus.

NSSA, working with NAVSEA and the original equipment manufacturer, were given guidance during removal of the damaged hub and installation of the replacement hub. 

NSSA's dive locker also provided assistance, logging 221 dives (equating to more than 41,000 minutes of bottom time assessments and repairs).


"NAVSEA provided our team with guidance and procedures on the hub change out via their engineering technicians and we performed the work as quickly as we could," said NSSA Master Diver Kelly Polk. "We went out there to solve a problem, got in the middle of the job and we were able to complete it. This repair hopefully set the standard for completing waterborne hub repairs."



To aid in a quicker repair, assets were removed from a decommissioned FFG and transported to NSSA headquarters in Norfolk where they were disassembled, repaired, cleaned and packed for shipping.

"Within one hour of the valves' arrival in Souda Bay, they were installed and the system was adjusted and operating properly. This allowed the pier side portion of testing to be completed that night and the ship was then prepared for underway testing," said Krewinghaus.



Taylor made all required preparations to get underway in parallel with the repair effort. Underway testing included a full power run with a hull vibration survey, and an emergency crash back - all of which the ship successfully completed - thereby ensuring she was fully capable of resuming her mission in support of the U.S. 6th Fleet.


Maritime Reporter June 2014 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

People & Company News

Costa Concordia: Operations to Tow the Wreck Begin

Maneouvres began early on Wednesday to remove the rusty hulk of the Costa Concordia cruise liner from the Italian island where it struck rocks and capsized two years ago, killing 32 people.

Thai Resort Owners Sue State Owned Company for Oil Spill

Business owners on Koh Samet island are suing a state-owned petroleum enterprise for the oil spill that polluted the resort island's beaches last year. More than 50,

Bahrain US$35-M Land Reclamation Contract for GLDD

Provider of dredging services in the United States and a major provider of environmental & remediation services, Great Lakes Dredge & Dock Corporation (GLDD) says

Ship Repair & Conversion

Hyde Marine Makes BWTS Installation Agreements

Hyde Marine, Inc., a wholly owned subsidiary of Calgon Carbon Corporation, says it has established two partnership agreements for installation of the chemical-free

MAN Extends High Speed Power Range

MAN announced it will present a newly developed 12-cylinder V-engine for use in working vessels at the SMM 2014 trade fair in Hamburg, Germany. The German engine

Germany as a Maritime Location Endangered: VDR

Germany, which currently is home to the world’s biggest container vessel fleet, will in future have fewer small shipping firms as European banks avoid the industry

Navy

Sunken WW II Ship Oil Leak Plugged

Atlantic Coast Marine Group, Inc. successfully responds to World War II era motor tanker leaking massive cargo of oil into the Atlantic Ocean's waters. Beaufort,

Maritime Reporter @ 75: The Daily Cartoon

Maritime Reporter & Engineering News was founded by John J. O'Malley (1905-1980) in 1939, and today ranks as the world's largest audited trade publication in the world serving the maritime industry,

Today in U.S. Naval History: July 22

Today in U.S. Naval History - July 22 1802 - Frigate Constellation defeats nine Corsair gunboats off Tripoli. 1905 - Body of John Paul Jones moved to Annapolis, Md.

Underwater Engineering

Ocean Mineral Singapore Set for Seabed Exploration

Ocean Mineral Singapore Pte. Ltd. (OMS) has received approval from the International Seabed Authority (ISA) on its application for its first seabed exploration licence.

2H Offshore Joins Deepwater Mining Consortium

2H Offshore, an Acteon company, has joined an international European consortium comprising nineteen industry and research organizations to develop deepwater mining solutions.

Giant Vessel to Change Offshore Decommissioning Game: Analyst

The new Allseas vessel, 'Pieter Schelte', is able to replace the previous slower method of removing topsides piece by piece with one lift, meaning a decommissioning

 
 
Maritime Security Naval Architecture Navigation Pipelines Pod Propulsion Port Authority Salvage Ship Electronics Ship Simulators Winch
rss | archive | history | articles | privacy | terms and conditions | contributors | top maritime news | about us | copyright | maritime magazines
maritime security news | shipbuilding news | maritime industry | shipping news | maritime reporting | workboats news | ship design | maritime business

Time taken: 0.1515 sec (7 req/sec)