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 Today


The Maritime Industry's original and most viewed E-News Service

Maritime Reporter May 2016 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

People & Company News

DP World to Manage Somaliland Port for 30 Years

DP World has reached an agreement to manage the Berbera port in Somaliland, which would allow it to become a major hub for goods to transit to and from the Horn of Africa,

Abu Dhabi Ports Try to Lure Chinese Businessmen

Abu Dhabi Ports - the master developer, operator and manager of ports and Khalifa Industrial Zone in the Emirate - presented the integrated offerings of Khalifa

NASSCO Lays Keel for Jones Act Tanker Liberty

U.S. shipbuilder General Dynamics NASSCO hosted a keel laying ceremony on Thursday, May 26 for the Liberty, one of three new ECO Class Jones Act tankers under a

Ship Repair & Conversion

Mermaid Maritime Bags Subsea Contracts, Delays Newbuilding

Thailand’s Mermaid Maritime said it has been awarded a number of subsea contracts in the Middle East with a total worth of $11million.   It has also reached

Hansa Offenburg, Hansa Drakenburg Sail Scale-free

Leonhardt & Blumberg was founded in 1903 and has managed more than 180 vessels, the majority of which were general cargo vessels and bulk carriers. Today the company

Haven Marine Signs Service Contract with Svitzer

Haven Marine Services informs it has signed a five year contract with Svitzer which will see the yard service the requirements of Svitzer’s vessels within the Bristol Channel and Irish Sea areas.

Navy

US Navy Updated Zika Virus Infection Guidance

Navy Medicine released updated Zika Virus Infection guidance in NAVADMIN 121/16, May 26, communicating current information, travel precautions, and risk reduction

1,076 Graduate from U.S. Naval Academy

The U.S. Naval Academy graduated 1,076 men and women at the annual graduation and commissioning ceremony May 27 at Navy-Marine Corps Memorial Stadium. U.S. Naval Academy Superintendent Vice Adm.

Phoenix Express 2016 Concludes

Maritime forces from North Africa, Europe, and the United States concluded exercise Phoenix Express 2016 with closing ceremonies in Souda Bay, Greece May 27. Phoenix Express,

 
 
Maritime Careers / Shipboard Positions Maritime Contracts Maritime Security Navigation Offshore Oil Pipelines Pod Propulsion Ship Electronics Ship Simulators Sonar
rss | archive | history | articles | privacy | 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: 0.1315 sec (8 req/sec)