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

People & Company News

MN 100: AEP River Operations

16150 Main Circle Drive, Suite #400 St. Louis, MO 63017 Tel: (636) 530-2100  Email: info@aepriverops.com Website: www.aepriverops.com President: Keith Darling The

MN 100: Caterpillar Marine

Neumühlen 9 22763 Hamburg/Germany Tel: (713) 895-1449 Email: cat_power@cat.com Website: www.marine.cat.com Managing Director: Nigel Parkinson The Company: Caterpillar

Airbus May Sell Stake in Submarine Supplier

Airbus is considering a sale of its 49 percent stake in submarine supplier Atlas Elektronik as part of a reshuffle of its military business, German newspaper Die

Ship Repair & Conversion

Mexican Navy Delegation Visits NSSA

The U.S. Navy reported that its Norfolk Ship Support Activity (NSSA) welcomed the Mexican Navy Delegation to Building CEP-200, Naval Station Norfolk, Aug. 21 for

German Shipyard FSG Re-organizes Top Management

Flensburger Schiffbau-Gesellschaft (FSG) says it will be headed by a new management team from January 1st 2015, details as follows: Current Chief Technology

US’ Largest Floating Drydock Heads to Portland

The country’s largest floating drydock, the Vigorous, is headed for Portland this weekend. The drydock, a piece of equipment used to lift vessels as large as cruise ships out of the water,

Navy

Mexican Navy Delegation Visits NSSA

The U.S. Navy reported that its Norfolk Ship Support Activity (NSSA) welcomed the Mexican Navy Delegation to Building CEP-200, Naval Station Norfolk, Aug. 21 for

Airbus May Sell Stake in Submarine Supplier

Airbus is considering a sale of its 49 percent stake in submarine supplier Atlas Elektronik as part of a reshuffle of its military business, German newspaper Die

Today in U.S. Naval History: August 22

Today in U.S. Naval History - August 22 1912 - Birthday of Dental Corps 1945 - First surrender of Japanese garrison at end of World War II; USS Levy receives

Underwater Engineering

Kvaerner in Statoil Unmanned Platform Project

Kvaerner say that Statoil has awarded it a concept study related to a standardised, unmanned dry tree wellhead platform for the Oseberg Future Development project.

RN Diving Expert Chris Baldwin Joins IMCA

The International Marine Contractors Association (IMCA) Secretariat says that Chris Baldwin has joined its team as a Technical Adviser following a short secondment from the Royal Navy.

Permanent On-site Collision Damage Repair in Greece

In July Hydrex mobilized a team of diver/technicians to Syros, Greece, for a complex repair operation on a 118-meter, 8550 DWT chemical tanker. The vessel had suffered

 
 
Maritime Careers / Shipboard Positions Maritime Security Maritime Standards Navigation Offshore Oil Pod Propulsion Salvage Ship Repair Ship Simulators Shipbuilding / Vessel Construction
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: 0.2137 sec (5 req/sec)