Attachment I SOW Rev1.pdf

NOAA Ship Oscar Sette FY21 Drydock Repairs

May 2020

NOAA SHIP OSCAR ELTON SETTE

SPECIFICATION FOR DRYDOCK

REPAIRS FY2021

REVISON 1

May 2020

FY 2021 DRYDOCK REPAIRS for NOAA Ship Oscar Elton Sette

TABLE OF CONTENTS

DESCRIPTION/TITLE PAGE

1.0 SCOPE

2.0 GENERAL

3.0 BASE ITEMS

3.1 Temporary Services

3.2 ABS Intermediate Hull Survey 7 Inspection

3.3 Drydock & Routine Drydock Work

3.4 Propeller and Tailshaft Inspection and Repair

3.5 Underwater Hull Preservation and Coating

3.6 Bow Thruster Inspection and Service

3.7 Sea Valve Overhauls

3.8 Main Propulsion Motors Maintenance and Inspection

3.9 Dock and Sea Trials

3.10 Annual Liferaft Inspections

3.11 Ground Tackle Preservation and Anchor Windlass Overhaul

3.12 General Electric Systems Maintenance

3.13 Annual Fire Detection and Suppression Systems Inspection

3.14 0-1 Deck Soft Patch (BERP) Renewal

3.15 Bilge Valve Overhauls

3.16 Miscellaneous Piping Repairs

3.17 Air Receiver Visual and Hydrostatic Testing

3.18 Miscellaneous Steel Repairs

3.19 Sewage Holding Tank (2-20-0-W) Repairs and Painting

3.20 Motor Room Intake Vent Renewal

3.21 Auxiliary Sea Water (ASW) Pump Overhauls

3.22 Anti-Roll Tank Piping and Reach Rod Modifications

3.23 Steering System Maintenance

3.24 Gauge and Instrument Calibration

3.25 Ballast Water Treatment System Installation

3.26 Reverse Osmosis Installation

3.27 Radar Installation

3.28 Generation Room (3-34-0-E) Bilge Preservation

3.29 Propulsion Motor Room (3-60-0-E) Bilge Preservation

3.30 Hydraulic Hose Replacement

3.31 Annual Inspection and Weight Testing of Lifting Appliances

3.32 MCT Repairs

3.33 Freeboard Preservation

3.34 Gallows Frame Preservation

3.35 Main Deck and 0-2 Deck Water Heater Renewals

May 2020

3.36 Galley Range Replacement and Fryer Installation

3.37 Aft Deck Crane Installation

3.38 Laundry Room Deck Covering Renewal

4.0 ADDITIONAL WORK

4.1 Additional Work

5.0 OPTION ITEMS

5.1 Port and Stbd SSDG Exhaust Stack Insulation Renewal

5.2 Mission Deck Void (1-86-01-V) Preservation

5.3 Main Generator Room Void (4-34-01-V) Spot Preservation

5.4 Jackstaff Preservation

5.5 Interior Motor Room Ventilation Duct Renewal

5.6 Ships Service Diesel Generator Resilient Mount Replacement

5.7 Scientific Freezer Deck Repairs

5.8 Bridge UPS Renewal

5.9 Foremast Preservation

5.10 HVAC Cleaning

5.11 Uncontaminated Seawater Lower Suction Mods

5.12 Decking Renewals

5.13 Bunk Room and Shower Repairs

5.14 VHF Antenna Installations

5.15 Trimble ABX-2 System Installation

1.0 SCOPE

1.1 These Detail Specifications contain the requirements for

drydock repairs and modifications to NOAA Ship Oscar Elton Sette.

1.2 The National Oceanic and Atmospheric Administration (NOAA) operates a fleet of research vessels that supports research and mapping for the National Marine Fisheries Service, National Ocean Service, Office of Atmospheric Research and the National Weather Service, as well as provides support to other Federal agencies. These research missions are time sensitive and therefore the data must be collected at specific times during the sailing season to be meaningful. At the end of each sailing season the vessels enter a repair period (drydock or dockside) to address repairs that have been previously identified, perform upgrades to mission systems or ship systems that either extend the life of the ship or provide new data collection capabilities or for safer operations of ships systems as well as address any emergent work that would adversely affect the ships ability to safely perform its mission on schedule, while meeting all regulatory body requirements (American Bureau of Shipping and United States Coast Guard) and all habitability requirements, including any that may be required as a result of contracts for personnel to augment ship staff.

1.3 The work items in the repair specification are identified well in advance of the performance period in order meet the contracting lead times. Additional work items (emergent work) may arise during the period between the work package submittal, contract award, or even prior to the start of or during the contract performance period. In accordance with Commerce Acquisition Regulation (CAR) clause 1352.271-72, the Contracting Officer may order additional changes during the contract period of performance to address any additional work items identified as necessary to ensure the intent of the drydock or dockside repair contract is met; that is, that the vessel shall be able to safely perform its mission, that it will meet all habitability requirements and regulatory body requirements, and that such repairs will be timely performed to ensure to the maximum extent practicable that the ship's schedule is not adversely impacted.

2.0 GENERAL

2.1 References

May 2020

2.1.1 NOAA Standard Specification No. AMC-000-1G, “General

Requirements for Ship Repair Work on NOAA Ships.”

2.1.2 NOAA Standard Specification S1600, “Structural Access

Cuts.”

2.1.3 NOAA Standard Specification, S2906, “Arc Welding on

Waterborne Vessels.”

2.1.4 NOAA Standard Specification MOC-631-2D, “Coating

Systems for Steel Surfaces.”

2.1.5 Drawing No. OS-830-002, “NOAA Ship Oscar Elton Sette

Booklet of General Plans.”

2.1.6 Drawing No. OS-800-004, NOAA Ship Oscar Elton Sette

Tank Soundings Tables.”

2.1.7 NOAA Weight Report Form, Microsoft XL Format, “Weight

Report.xls”

2.1.8 XX

2.2 Requirements

2.2.1 Reference 2.1.1 forms a part of these Detail

Specifications. All provisions and requirements contained therein are applicable to all work items, including all additional work items which are authorized by the Contracting Officer.

2.2.2 References 2.1.2 and 2.1.3 are amplifications of the

requirements contained in reference 2.1.1 sections 4.17 and 4.21.

2.2.3 Some of the ship’s drawings have not been updated to

reflect modifications to the ship during activation and conversion in 2002. Contractor shall be responsible for verifying all current configuration, construction, and arrangement changes, as necessary, to comply with and perform the work requirements of these specifications. Contractors are encouraged to review ship’s drawings and to perform a field inspection of the ship and her equipment prior to submitting a bid proposal.

2.2.4 Ship’s drawings and technical publications may be

borrowed during the performance period. It would be preferable for the contractor to make copies of these drawing and technical publications if their intended use will be outside an office environment. All reference materials borrowed by the Contractor shall be signed for, and then returned to the COR after no further use of the reference materials is required.

2.2.5 Provide and maintain a status report of all American

Bureau of Shipping (ABS) inspections and technical reviews required by ABS, during the course of this contract, to ensure the ship’s ABS certification requirements are in compliance.

Submit weekly ABS status reports to the COR, along with the preliminary progress reports.

2.2.6 Provide a copy of ABS-approved welding procedures and

maintain a list of currently qualified welders.

2.2.7 Develop, in consultation with the American Bureau of

Shipping (ABS) Surveyor, a written survey schedule that lists the items to be inspected and the scheduled dates and times of the inspections. Submit the survey schedule to the COR within 48 hours after the start of the contract performance period. Provide the survey schedule with all initial inspections required by the ABS Surveyor. In addition, schedule the services of an ABS Surveyor as required by ABS for performing inspections of all new installations, hull modifications, tank inspections, gauging inspections, and load tests. NOAA will pay for all ABS surveys under a separate purchase agreement with ABS.

2.2.8 All visual examination, hydrostatic testing, and non-

destructive testing shall be in accordance with ABS Rules for Building and Classing Steel Vessels, Survey After Construction 2005, Part 7. All contractors performing NDT and hull gauging shall be certified under the ABS external specialists program.

2.2.9 On the first day of the contract performance period, provide the COR a detailed production schedule. Then, on a weekly basis (on the day preceding the Weekly Progress Meeting) provide the COR a revised and updated production schedule reflecting actual work progress. These deliverables shall be in Microsoft Project electronic format and 3 paper copies.

2.2.10 All new equipment and furnishings purchased by the

Contractor for installation on the vessel shall be provided with factory supplied technical manuals, or data sheets, complete with parts listings. Faxed copies of this information are not acceptable. This documentation shall be turned over to the COR after installation is completed. Equipment technical manuals shall provide detailed information necessary to operate, maintain, troubleshoot, and repair the equipment. The manuals shall include detailed procedures for disassembly of equipment, parts lists, drawings, inspection criteria, troubleshooting, and test procedures. Provide four paper copies of each manual, plus one electronic copy in Abode Acrobat .pdf format.

2.2.11 Submit all inspection, test, and quality reports to

the COR in Microsoft Word electronic software format, in addition to providing hard paper copies.

2.2.12 Weigh all materials and items removed, installed, or

relocated on the ship. Provide a summary report to the COR indicating the total weight in pounds of items and a breakdown of their locations by space, deck, frame, distance from centerline, and height above the deck. Reference 2.1.7 has been provided for the Contractor to identify, record, and document all weight changes for submitting the summary reports.

Contractor may use their own weight report form for documenting weight changes. All the information required must be tracked and documented on any form provided.

2.2.13 Unless otherwise stated in the individual work items, prepare and coat all new steel, all existing steel surfaces identified to be cleaned and painted, and all paint systems disturbed while accomplishing work items, in accordance with Reference 2.1.4. Finish coat colors and paint type shall match those of the surrounding, unmodified area.

2.2.14 Ship’s force will maintain a minimal presence during

accomplishment of work to these specifications. Their availability to operate ship’s equipment will be limited. Crew availability is generally limited to the hours of 0800 and 1500 local time, Monday through Friday. Unless otherwise specified, provide a minimum of two working days’ prior notice for any equipment operations.

2.2.15 All new and disturbed machinery and services shall be

operated for a period sufficient to indicate satisfactory performance, but not less than one hour, after all adjustments and deficiency corrective actions have been made, without further adjustment.

2.2.16 Provide manufacturer’s technical representatives where required in the individual work items, to witness and to provide technical guidance during operational testing of equipment and systems. All tests and trials of equipment or systems shall be witnessed by the COR, ABS, and/or USCG as applicable, to ensure compliance with regulatory body requirements to maintain the ship’s ABS class certification, and to complete all requirements of these specifications.

2.2.17 Habitability

2.2.17.1 The ship shall be deemed uninhabitable when any one or a combination of the following conditions exist and it is impossible for management to correct the problem in a timely manner (4 hours or as noted below):

a. Heat and/or air conditioning is not furnished.

b. Potable water (hot or cold) is not provided for a period of 12 or more consecutive hours.

c. When a working toilet, shower and sanitary drainage are not furnished.

d. At all times when the vessel is in drydock overnight, unless the ship is fully habitable with all facilities including heat and/or air conditioning, lights, hot and cold running water, shower and sanitary facilities (working toilets and sanitary drainage). Portable toilets do not meet the requirements for sanitary facilities.

e. Work such as chipping, welding, riveting, hammering and/or pounding, or other noises of a similar nature are being performed in or around vessel personnel quarters or noxious fumes are present that disrupts the employees ability to rest for more than three (3) hours. Note: Wage mariners not assigned to a watch, are assigned to work during eight (8) hours of duty between 0800 and 1700, Monday through Friday.

f. Flooding of quarters or common areas due to bilge or sewage backup not repaired within 24 hours.

2.2.17.2 When a vessel is in port and declared uninhabitable, no employee will be allowed to live on board. Individual quarters may be deemed uninhabitable when the respective quarters have been painted, the paint is not absolutely dry, and other suitable quarters are not furnished aboard. It is also not intended that any wage mariner shall be assigned to sleep in a flooded berthing area.

2.2.18 On repairs or overhauls of existing equipment, follow

Original Equipment Manufacturer’s (OEM’s) recommendations for parts and service in such a manner that the manufacturer’s warranty on parts and labor is not voided. Unless specified elsewhere in the detail specification, all replacement parts shall be new parts from the OEM.

2.2.19 These Detailed Specifications are a combination of

“performance specifications” and “design specifications.”

Whenever possible, the Government has provided performance specifications, giving the Contractor the opportunity to accomplish the work requirements as best as he or she sees fit, while providing a fully functional repair and/or equipment/system installation in accordance with all work requirements. When specific details are required, the Government will provide design/detail specifications; this will be more the exception, than the rule.

2.2.20 Frame numbers and space names are derived from ship’s

drawings. All equipment changes and space modifications over the ship’s life span may not all be reflected in the referenced drawings. Contractors are encouraged to review all referenced drawings and to perform a field inspection of the ship prior to submitting a bid. Copies of drawings and technical manuals not included herein may be made available for review during any scheduled pre-bid inspection and during the performance period.

Contractors may review available drawings and technical manuals on board ship.

2.2.21 All equipment changes and space modifications over the ship’s life span may not all be reflected in the referenced drawings. Contractors are encouraged to review all referenced drawings and to perform a field inspection of the ship prior to submitting a bid.

2.2.22 The Order of Precedence when interpreting these

Government specification and requirements is as follows:

Detailed Specifications, Standard Specifications, General Requirements, Drawings, General Provisions, referenced industry standards, and others.

2.2.23 Whether specified in the individual specification item or not, all surface preparation and painting shall be accomplished by a SSPC QP1 certified painting contractor.

2.2.24 Zinc chromate paint is known to exist on the ship on

interior steel surfaces from original construction. Contractor is advised to anticipate encountering zinc chromate paint in the course of this repair work and to take necessary precautions to minimize hazards associated with same (i.e., use solvent to remove zinc chromate from suspected areas before cutting, grinding, etc.).

2.3 Notes

2.3.1 The following descriptive data of the ship is provided

for information:

Length, Overall......................................224’ 0”

May 2020

Length, BP...........................................194’ 0” Beam, Molded..........................................43’ 0” Mean Draft, Loadline..................................15’ 1” Displacement, Loadline.............................2311.5 LT Displacement, Lightship............................1591.2 LT Cruising Speed......................................11 knots Officer & Crew Size Scientists and Technicians Electric Service.......450 VAC, 60 Hz, 3 PH, 800 Amp Service Propulsion.......................Diesel electric, twin screw

2.3.2 NOAA Ship Oscar Elton Sette is classed A1, E, AMS, and ACCU and identified with the following:

Official Number - CG014936

ABS ID - 8801905

IMO NUMBER – 8835097

2.3.3 GOVERNMENT FURNISHED MATERIAL/EQUIPMENT

ITEM QTY DESCRIPTION

3.21 (2) ASW pump overhaul kits

5.10 (2) Hot water heaters

5.12 (48) SSDG Resilient Mounts

3.25 (1) Ballast Water Treatment System

3.26 (2) Reverse Osmosis Desalinators

5.11 (1) Aft Deck Crane

5.14 (1) Climber Safety Rail and Clips

5.17 (1) Seabird SBE-38 Temperature Probe

3.0 BASE ITEMS

3.1 TEMPORARY SERVICES

3.1.1 References

3.1.1.1 NOAA Standard Specification AMC-000-2C, "Temporary

Services at Contractor Facilities"

3.1.2 Government-Furnished Material

3.1.2.1 None

3.1.3 Requirements

3.1.3.1 Provide all temporary services required in accordance with Reference 3.1.1.1.

3.1.3.2 The following additional information and requirements apply:

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May 2020

3.1.3.2.1 Electric power: Provide two 450 VAC, 3 Phase, 60 Hertz, 400 Amp circuits [800 amps total] with NATO plugs and pig tails.

The Contractor shall provide properly rated shore power cables.

All power supplied to the ship shall be clean, with no indications of ground faults on the ship’s main switchboard. Total Harmonic Distortion (THD) shall not be greater than 6%. Voltage at the ship’s switchboard shall not vary by more than 3% the prescribed 450 VAC requirement. All ground fault deficiencies associated with the Contractor’s power supplied to the ship, shall be corrected at the Contractor’s expense. Such expense shall include housing allowance for ship’s crew, if the ship is still habitable at the time the deficiency is noted.

3.1.3.2.2 Telephone lines: Provide six telephone lines. Connect two voice lines to the ship's telephone connection box above the shore power station at frame 72 on the 01-deck. Connect two voice lines to the shore offices (one in the COR's office and one in the ship's office). Connect two data lines for service on two fax machines (one in COR’s office and one in Ship’s Office).

3.1.3.2.3 Fax machines: Provide two Fax machines (one in the

COR’s dockside office space and one in the ship’s office).

3.1.3.2.4 High-Speed Internet Service: Provide high-speed, broadband internet connectivity via a local Internet Service Provider (ISP), or privately owned, internal internet connection.

High-speed, broadband internet is defined as Digital Subscriber Service (DSL), Cable Network, or Fiber Optic Network services with minimum download speeds of 320 Kbps. The service provided shall be a business-type account that supports Virtual Private Network (VPN) connections, if available. Provide the proper number of connections necessary to satisfy the ship’s wet berth and drydock locations, as well as the ship and COR’s dockside office space(s).

All necessary cabling, DSL or cable modem(s), or fiber translators shall be provided for an RJ-45 network connection to the ship and office(s) routers. Provide a minimum of one Internet Protocol (IP) address with Directory Name Server (DNS) service for each of the ship and dockside office(s) locations. The ship’s electronic technician (ET) will provide the necessary routers and switches needed.

3.1.3.2.5 Security Service. In addition to Reference 3.1.1.1

requirements, increase security round frequency from two-hour intervals to one-hour intervals.

3.1.3.2.6 Air: Provide 125 psi dry, filtered, compressed air to a manifold on deck. No connection shall be made by the contractors or their subcontractors to the ship’s compressed air distribution

May 2020 system.

3.1.3.2.7 Cooling Water: Provide 300 gpm @ 80 psig capacity, with a separately priced option for an additional 300 gpm @ 80 psig if needed, for ship’s auxiliary sea water system which supports all refrigeration plant cooling water, air conditioning plant cooling water, and sanitary system toilet flushing needs (NOTE, the ship’s sea water system provides 600 gpm for full load). In the event the sea water or cooling water provided to these systems is disrupted or disabled, an alternate means of providing water service to these systems shall be the Contractor’s responsibility.

Provide a pressure regulator on the discharge side of the Contractor’s cooling water supply to the ship’s systems capable of regulating pressure between 25 psig and 80 psig. Contractor may provide separate cooling water service connections to meet the ship’s cooling water systems needs at designated hook-up locations. See ship’s Chief Engineer for individual cooling water service hook-up locations and pressure requirements for the separate systems. Make-up temporary by-pass hose and/or piping arrangements to support the ship’s AC and refrigeration plant cooling water needs, in conjunction with the work requirements of other items in these specifications.

3.1.3.2.8 Protective Covering: In addition to the protective

coverings specified in paragraph 4.5.1 of Reference 2.1.1, place a layer of heavy duty (minimum thickness of 4 mils) plastic sheeting between the deck and the protective covering.

3.1.3.2.9 Parking Spaces: Provide seven reserved vehicle parking spaces within 100 feet of the dockside office spaces. Identify additional parking spaces for up to 15 vehicles, within or outside the shipyard, which may be available for parking by ship’s personnel and other NOAA representatives.

3.1.3.2.10 Office Spaces: Provide two secure locked office

spaces (one office space for the COR and one for ship’s office space). Increase office size to 12-feet x 20-feet. Provide three sets of keys to each space to the COR. COR’s office shall be made available three days prior to the ship’s arrival at the Contractor’s facility and shall remain so until three days after the ship has departed.

3.1.3.2.11 Ship’s dockside office shall contain three desks

along with six chairs. Two phone lines shall be provided [described above]: one voice and one fax. Provide high speed internet service as required in paragraph 3.1.3.2(d) above. Provide one fax machine. Provide one 4-drawer file cabinet with lock set. Add one fire proof safe for ship’s security documents. The minimum interior size of the safe shall be 14-inches long by 18-inches

May 2020 deep by 12-inches high.

3.1.3.2.12 COR's dockside office space shall contain one desk, one 48-inch high by 36-inch wide bookshelf, and three chairs.

Provide two phone lines [described above]: one voice and one fax.

Provide high speed internet service as required in paragraph

3.1.3.2 (d) above. Provide one fax machine. Provide one 4-drawer file cabinet with lockset, and one 3 foot wide x 4 feet high x 12 inches deep book case. Provide one copy machine capable of multiple copying, sorting, and paper size conversion (enlarging/reducing) of documents, in paper size ranges from letter (8.5 x 11 inches), legal (8.5 x 14 inches), and “D“ size drawings (11 x 17 inches).

3.1.3.2.13 Storage Container: Provide a closed, lockable

storage container, or space, for ship’s personnel use, with minimum nominal dimensions of eight feet high by eight feet wide by twenty feet deep. Provide COR three sets of keys to the lock for this storage container.

3.1.3.2.14 Oily Waste Disposal: Pump the bilge oily water

holding tanks 4-60-1- F and 4-60-2 F (estimate 500 gallons on board, up to 3000 gallons maximum), and the sludge tank 3-50-2-F (estimate 50 gallons on board, up to 100 gallons maximum). Pumping of the bilge oily water holding tanks and the sludge tank shall be done at the beginning of the contract performance period.

Additional pumping will be required whenever liquid is added to these tanks or spaces as a result of contractor washing down in order to maintain gas-free certification, or other incidental liquid drainage into these spaces as a result of the performance of work.

3.1.3.2.15 Bilge Cleaning: Pump Generator Room and Propulsion Motor room bilges at the beginning of the contract period and at the end of the period. Pressure wash, pump, and clean all debris from the bilge at the end of the contract period. Protect all electrical controllers and machinery from overspray and debris prior to pressure washing. Clean out all bilge rose boxes after pressure washing.

3.1.3.2.16 Crane Service: Provide crane operator and riggers

for ship's force equipment and material lifts needed during normal working hours. Provide crane lifts with a 5-ton minimum capacity.

The COR will provide a minimum of four hours’ notice prior to any lifting required for ship’s force needs. For bidding purposes, assume 10 hours of crane service in total. In addition, provide adequate pier space and vehicle access for staging mission equipment and loading provisions during the last two weeks of the contract period.

May 2020

3.1.3.2.17 Toilet Facilities & Sewage Disposal: Provide

temporary toilet facilities and perform sewage system effluent and turbid water disposal at any time the ship’s sanitary system and marine sanitation plant and gray water system operation is disrupted, due to work performance on any other item of these specifications where disruption of these systems will be required.

Ships sanitary systems are to be for ship’s crew only. All shipyard personnel and shipyard subcontractors will have their own bathroom and sanitary facilities separate from the ship. Post signs prominently to make all personnel aware of this rule.

3.1.3.2.18 Grey and Black Water Discharge: Provide a

connection for the ship’s grey water overboard discharges, located on the starboard hull side, just forward of the Plimsoll mark.

Collect and properly dispose of all grey water overboard discharges which shall meet the same requirements for sewage and turbid water disposal, in accordance with paragraph 3.10 of Reference 2.1.1.

3.1.3.2.19 Service Interruption: In the event temporary

services provided to the ship are reduced or disrupted due to the extent of contract work, thereby rendering the ship uninhabitable, an equitable adjustment to the contract shall be negotiated. The daily temporary service charge for all services as bid, but not provided shall be reduced and a credit provided to the government for the remainder of the contract period. Contractor shall make every effort to maintain all facilities and services required by this specification in a safe manner, so as not to render the ship uninhabitable.

3.1.4 Quality Assurance

3.1.4.1 In accordance with Reference 3.1.1.1.

3.1.5 Notes

3.1.5.1 None.

END OF ITEM

3.2 ABS INTERMEDIATE HULL SURVEY 7 INSPECTION

3.2.1 References

3.2.1.1 NOAA Standard Specification MOC-100-1A, "ABS Load Line Survey"

May 2020

3.2.1.2 Drawing No. OS-830-002, " Oscar Elton Sette Booklet of General Plans"

3.2.1.3 Drawing No. OS-800-04, "Oscar Elton Sette Tank

Sounding Tables”

3.2.2 Government Furnished Material

3.2.2.1 None.

3.2.3 Requirements

3.2.3.1 Schedule the services of an American Bureau of

Shipping (ABS) surveyor to accomplish all inspections required under Intermediate Hull Survey No. 7 (see Note 3.1.5.1).

Government will compensate ABS directly for survey costs under a separate purchase order.

3.2.3.2 Assist ship’s Chief Engineer in transferring ballast

water from one ship’s ballast tank to another as necessary to accomplish tank boundary inspections. Boundary inspections shall be accomplished under a full head of liquid. Use existing ballast water or fresh water provided by Contractor for ballast tank boundary inspections.

3.2.3.3 Open and prepare the following ballast tanks and void spaces for inspection in accordance with all requirements of Reference 3.2.1.1, section 3.4, “Tank Inspections.” See Note

3.2.5.2. “Cleaning” shall include power washing followed by removal of all residual water and power washing residue. In addition to “Safe for Entry” requirements of paragraph 3.4.1, all tanks scheduled for opening and inspection shall be certified “Safe for Hot Work” by a Marine Chemist. Erecting scaffolding or temporary staging inside tanks, if required, will be accomplished as additional work.

Ballast Tanks Fore Peak Tank (4-B-0-W) Ballast Tank (4-23-0-W) Ballast Tank (4-23-1-W) Ballast Tank (4-23-2-W) Anti-Roll Dump Tank (4-40-0-W) Ballast Tank (4-52-0-W) Ballast Tank (4-60-0-W) Anti-Roll Tank (2-72-0-W) Ballast Tank (4-86-1-W) Ballast Tank (4-86-2-W)

May 2020

Aft Peak Tank (3-94-1-W) Aft Peak Tank (3-94-2-W)

Void Spaces Speed Log Trunk (4-23-1-T) Depth Finder Transducer Trunk (4-32-1-T) Void (4-34-0-V) Void (4-34-01-V)

While not required to be inspected by ABS for the Intermediate Survey, accomplish the same cleaning procedures on the Laundry Room Waste Water Tank (3-23-1-W).

3.2.3.4 While the ballast tanks are open for survey purposes, inspect/test the suction piping from each tank to ensure there are no obstructions. Likewise ensure that the sounding tube of each ballast tank is free of obstructions.

3.2.3.5 Accomplish all inspections jointly with ABS surveyor

and COR (or other designated government representative) present.

Contractor shall prepare tanks for survey and shall bear cost of re-survey due to improper or inadequate vessel preparation.

Neither the Government nor the Contractor shall be compensated by the other for delay of a scheduled survey if the delay is caused by ABS for which neither Contractor nor Government is at fault.

3.2.3.6 Open all vent valves associated with the subject tanks and voids and prepare the valve components for inspection by ABS surveyor. Any valve components requiring repair or renewal will be handled as additional work. Re-assemble and re-install valves following inspection. Touch up damaged paint.

3.2.3.7 Close up and perform 2 psi air tests on all opened

tanks and voids in accordance with paragraphs 3.4.7 and 3.4.8 of Reference 3.2.1.1. Air tests must be accomplished using a manometer to protect tanks and voids from over-pressurizing.

Air test not required on Laundry Room Waste Water Tank (3-23-1- W).

3.2.4 Quality Assurance

3.2.4.1 As per Reference 3.2.1.1.

3.2.5 Notes

3.2.5.1 Intermediate Hull Survey inspection requires

Ultrasonic Testing (UT) of “suspect areas.” There are no

May 2020 indications of suspect areas from previous ABS surveys. The tanks and voids were last inspected by ABS during drydocking in February 2017 and found to be in good condition. If UT readings are found to be required, they will be accomplished as additional work.

3.2.5.2 The local ABS surveyor may elect not to inspect

certain tanks or voids at his/her discretion; however, that does not automatically relieve Contractor of the requirements herein to accomplish the preparation for inspection of all tanks and voids listed in paragraph 3.2.3.3. Contractor and COR may agree to an equitable price adjustment under such circumstances.

3.2.5.3 Additional information on tank locations and

capacities may be found in References 3.2.1.2 and 3.2.1.3.

END OF ITEM

3.3 DRYDOCKING & ROUTINE DRYDOCKING WORK

3.3.1 References

3.3.1.1 NOAA Standard Specification AMC-997-1A, “Drydocking

and Routine Drydock Work”

3.3.1.2 Drawing No. SE-085-002, “Docking Drawing”

3.3.1.3 Drawing No. 562-6233911, “Rudder Stock Carrier Bearing Arrgt and Details”

3.3.1.4 NOAA Standard Specification S1205, “Zinc Protectors”

3.3.1.5 Drawing No. 633-6233582, “Zincs Arr & Details”

3.3.1.6 NOAA Standard Specification MOC-100-1A, “ABS Load

Line Survey”

3.3.1.7 CLEARFLO Technical Manual, “Marine Growth Prevention & Corrosion Mitigation System Installation & Operation Manual”

3.3.1.8 Form S0700, “NOAA Docking Report”

3.3.1.9 XX

3.3.2 Government Furnished Equipment

3.3.2.1 None.

May 2020

3.3.3 Requirements

3.3.3.1 Dry Dock Certification is required.

3.3.3.2 Several of the ship’s fuel tanks will require access

for work on other items (e.g., 4-14-1-F and 4-14-2-F tanks for welding ladders in the sewage holding tank; other fuel tanks for access to sea valves for overhaul). To facilitate this work, remove approximately 40,000 gallons of fuel oil from the ship. Clean, gas-free, and make safe for hot work those thank which will be emptied for work on these other items.

3.3.3.3 If the diesel oil is to be removed from the ship and

later to be returned to the ship, pump and meter the fuel to clean shore-side storage tanks. Upon return to the ship, pump and meter the fuel through a 10 micron filter system with a hygroscopic (moisture absorbing) component when it is returned to the ship. Fuel oil removed and returned shall be sampled and tested by a chemist prior to being removed and prior to being returned to ensure the fuel is in good condition.

Provide sample results to the COR.

3.3.3.4 Assist the Chief Engineer in transferring remaining

fuel within the ship as necessary to satisfy repair requirements. Coordinate this activity with the Dock Master and the ship’s Chief Engineer so as not to interfere with other work or cause an issue with safety or stability while on the drydock.

3.3.3.5 Drydock the vessel within the first 72 hours of the

contract performance period. Provide drydocking and routine drydock work in accordance with Reference 3.3.1.1. When washing the propellers with high pressure water per paragraph

3.4.1 of Reference 3.3.1.1, the water pressure shall not exceed 10,000 psi.

3.3.3.6 The following information and additional requirements apply:

3.3.3.6.1 Connect electrical power and cooling water in the

drydock in accordance with paragraphs (a) and (g) of Item

3.1.3.2 prior to the ship being lifted out of the water.

3.3.3.6.2 Block the ship with a minimum of four feet clearance under the keel (forward and aft of the Transducer Fairing Unit) in Docking Position No. 3.

May 2020

3.3.3.6.3 When the vessel is set on the keel blocks, prior to lifting it out of the water, have divers ascertain that the bilge blocks are contacting the hull properly and not landing on any underwater appendages. The divers shall inform the Dockmaster and COR and then lifting shall continue.

3.3.3.6.4 Provide rudder clearance readings to the COR within the first seven days of ship drydocking during the contract performance period.

3.3.3.6.5 In the presence of the ABS surveyor, open drain plugs on rudders. Drain liquid, if any, from rudder interiors.

Conduct a 2 psi air test on rudders. Apply an environmentally friendly float coat to rudder interiors by the fill and drain method. See Note 3.3.5.4.

3.3.3.6.6 Clean the P/S propeller and bow thruster blades to

bright metal by power brushing. Hard tools and wire brushes shall not be used. See Note 3.3.5.1.

3.3.3.6.7 Perform NDT inspection of the propeller blades using the Dye Penetrant method.

3.3.3.6.8 Perform the following inspection on the port and

starboard rudders:

3.3.3.6.8.1 Jack the rudders forward and aft. Using a dial

indicator, measure the amount of travel at the lower end of the lower rudder bearing.

3.3.3.6.8.2 Jack the rudders port and starboard. Using a

dial indicator, measure the amount of travel at the lower end of the lower rudder bearing.

3.3.3.6.8.3 With the rudder centered forward and aft and port and starboard, jack the rudder up and down. With a dial indicator, measure the amount of travel.

3.3.3.6.8.4 Submit a report to the COR indicating the amounts of travel in the rudder bearings for both port and starboard rudders.

3.3.3.7 Provide the ABS Surveyor with prior notice and the

opportunity to inspect any or all portions of ongoing work ordered by this item.

3.3.3.8 Renew hull, sea chest, bow thruster tunnel, and shaft strut zinc anodes as designated by the COR in accordance with References 3.3.1.4 and 3.3.1.5. See Note 3.3.5.2.

May 2020

3.3.3.8.1 Remove and scrap 84 existing zinc anodes. Clean, prime and paint the areas behind the zincs per Underwater Body Coating item prior to installing the new zinc anodes.

3.3.3.8.2 Install 84 new zinc anodes type ZHC-23 conforming to MIL-A-18001K, same size and type, and in the same location as those removed. Provide and install up to 10 new studs and fasteners for those damaged or missing. The new finished zinc plates shall weigh twenty three (23) pounds each. Provide certification to the COR that the new zinc anodes are in conformance with MIL-A-18001K.

3.3.3.8.3 Zinc attachment points and damaged hull paint shall be cleaned and painted after installation in accordance with Underwater Body Coating item. No paint or other permanent coatings are to be applied to the exposed zinc surfaces, which shall be clean bare metal. The underwater body side of the zinc shall not contact the hull.

3.3.3.8.4 After completion of all zinc anode renewals, visually inspect each new zinc anode to determine proper attachment, and to ensure that the anodes were not painted during painting of the hull.

3.3.3.9 Prepare and accomplish ultrasonic testing (UT) on the ship’s three sea chests in accordance with Reference 3.3.1.6, section 3.3, “Ultrasonic Tests (UT) for Thickness Gaging.” Take a minimum of 30 UT readings per sea chest. Thickness gaugings shall not be taken before the hull has been water washed, and shall be completed before painting of the underwater body.

Note: Original plate thickness in sea chests is 7/16” (17.85# plate).

3.3.3.10 Perform the following work on the CLEARFLO system in accordance with Reference 3.3.1.7, and under the guidance of an on-site manufacturer’s field engineer (see Note 3.3.5.3):

3.3.3.10.1 Provide and install two new Wilson Walton

CLEARFLO anodes (one copper, one iron) in each of the ship’s 3 main sea chests – two of which are located port and starboard in the Main Generator Room 3-34-0-E, and one in the Main Propulsion Motor Room 3-60-0-E.

3.3.3.10.2 Install a new anode cofferdam and mounting ring

for each anode.

3.3.3.10.3 Inspect the operation of the CLEARFLO system

prior to drydocking while the vessel is still waterborne, in the

May 2020 drydock following all work on the system, and after the ship has been refloated.

3.3.3.10.4 After installation of the new anodes and

refloating of the ship, test the CLEARFLO system’s control cabinet for proper anode current adjustments to the newly installed anodes.

3.3.3.10.5 Submit a Condition Report to the COR with

recommendations for additional work, if any. Any additional work will be subject to the approval of the Contracting Officer.

3.3.3.10.6 Submit an Inspection and Service Report from the

manufacturer’s field engineer to the COR.

3.3.3.11 While the three sea chests strainer plates are off in order to accomplish the work in paras 3.3.3.7 and 3.3.3.8 above, and before the U/W Hull painting work is accomplished, enlarge the slots in the three sea chest gratings as follows (detail of strainer plate below:

3.3.3.11.1 Existing slots are ½-inch wide. Widen the slots

in every other row to 5/8-inch.

3.3.3.12 After all modifications and repairs to the underwater hull are completed, including all underwater hull modifications required in other items of these specifications, provide the COR a final marked-up copy of the ship’s docking plan in accordance

May 2020 with Reference 3.3.1.1, section 3.5.6. Contractor shall also document repairs and alterations made on the final docking report form and submit the report with the marked-up copy of the ship’s docking plan.

3.3.4 Quality Assurance.

3.3.4.1 After the blocks have been set and before lowering the drydock for hauling the ship, conduct a final inspection of the blocking with the COR and the dockmaster. Recheck measurements as necessary to satisfy the COR that the block locations are in accordance with the contract requirements. Acceptance of the blocking arrangement by the COR in no way relieves the Contractor of the responsibility for safely drydocking the ship without strain or damage.

3.3.4.2 Record all measurements and observations required on

NOAA Docking Report, Reference 3.3.1.8.

3.3.5 Notes

3.3.5.1 The ship’s propellers are an anti-singing design. The leading and trailing edges of these propellers are finely finished, and care must be taken not to damage these areas.

Exercise caution when polishing the propeller surfaces to minimize removal of metal.

3.3.5.2 Reference 3.2.1.5 shows type ZHS-23 (weld-on strap

type) zincs. These were subsequently replaced by type ZHC-23 (bolt-on) zincs as specified in paragraph 3.2.3.6.

3.3.5.3 The manufacturer’s representative for the CLEARFLO

system is Wilson Walton International. The following contact information is provided for purchasing parts and to arranging for field engineer service:

Wilson Walton International Attn: Cassie Corbett 3349 Rt. 138, Bldg C., Suite E Wall, NJ 07719 Tel: (732) 681-0707 e-mail: cassie@wilsonwalton.com

3.3.5.4 The following products are acceptable environmentally friendly float coats for rudder interiors:

Eureka Fluid Film NAS Kellsport Products 22 Boomer St.

mailto:cassie@wilsonwalton.com

May 2020

Fall River, MA 02720 Tel: (888) 341-4600

Cortec® M-645 Float Coat Cortec Corporation White Bear Mountain, MN Tel: (800) 426)-7832 Fax: (651) 429-1122

3.3.5.5 The ship carries approximately 162,000 gallons of

diesel oil (with tanks at 95% full) and can be assumed to have approximately (70%) of her fuel on board upon arrival at the Contractor’s facility.

END OF ITEM

3.4 PROPELLER and TAILSHAFT INSPECTION and REPAIR

3.4.1 References

3.4.1.1 Technical Manual "Stern Tubes, Bearings and Seals"

3.4.1.2 Drawing No. 243-6233870, "Main Propeller Shaft

Installation Arrangement and Details”

3.4.1.3 T-AGOS Drawing No. 243-6233897, “Tail Shaft Details”

3.4.1.4 T-AGOS Drawing 243-6233981, “Shafting & Coupling

Alignment and Installation Procedures”

3.4.1.5 NOAA Standard Specification AMC-240-1, “Propeller Shafts and Propellers”

3.4.1.6 ABS Rules for building and Classing Steel Vessels, Part 1, Section 1/3.11

3.4.1.7 Ship’s Stern Tube Bearing Wear Down Record (if available)

3.4.2 Government Furnished Equipment

3.4.2.1 None.

3.4.3 Requirements

3.4.3.1 Prior to drydocking the ship, conduct operational tests of both rudders and both propeller shafts.

3.4.3.2 No sandblasting or painting shall be permitted in or near the drydock while the propeller, shaft, seals, or bearings are being worked on in the drydock.

May 2020

3.4.3.3 While the ship is drydocked, accomplish the following work on the tail shafts and stern tube assemblies in accordance with References 3.4.1.1 – 3.4.1.5.

3.4.3.4 Remove and dispose of all oil and water (if any) from both port and starboard stern tube lube oil systems, including stern tube and forward seal head tanks and sumps, (approximately 150 gals per side). While draining the oil, obtain a sample from each stern tube and send out for laboratory analysis.

Report the following trace metals in parts per million: Iron, Chromium, Aluminum, Lead, Tin, Copper, and Nickel. Also report TAN (total acid number).

3.4.3.5 Open port and starboard sumps and head tanks. Clean each tank of all dirt, rust, sludge, and sediment using lint free rags and solvent. Flush the stern tube lube oil piping systems with clean oil. Re-clean the sumps and head tanks and replace the filters.

3.4.3.6 Schedule the services of an American Bureau of Shipping (ABS) surveyor to the extent necessary, to accomplish all required inspections and technical reviews to maintain compliance with ABS class requirements. NOAA will pay ABS for survey costs under a separate purchase agreement.

3.4.3.7 Perform the special periodic survey for tail shafts with oil lubricated bearings, satisfactory service record in accordance with ABS Rules for Building and Classing Steel Vessels, Part 1, Classification, Testing and Surveys, Section 1/3.11.

3.4.3.8 All work on the tail shafts, stern tube seals, liners, and bearings shall be accomplished under the guidance of an on-site manufacturer's technical representative. See Note 3.4.5.1.

Provide the services of a manufacturer's technical representative from to oversee bearing weardown readings and perform a check of the stern tube seals. It is imperative that the manufacturer’s technical representative provided have experience inspecting and servicing the stern tube bearing assemblies installed aboard NOAA Ship Oscar Elton Sette, in order to properly obtain bearing wear down measurements and evaluate the condition of the bearings and seals.

3.4.3.9 Under the guidance of the technical representative, take bearing wear down readings on the forward, intermediate, and strut bearings of both tailshafts. Prior to taking the readings, the propellers shall be oriented such that the lifting eyes on

May 2020 the propeller hubs are at the 12 o’clock position. To the extent practicable, use the bearing wear down gauges provided by the ship’s Chief Engineer. All readings taken shall be witnessed by the ABS surveyor, COR, Chief Engineer, and the technical representative. In addition to providing recorded readings in an inspection report, readings shall also be entered in the ship’s wear down record, to be retained with the wear down gages. Return the wear down gages to the ship’s Chief Engineer after recording all measurements are taken. Upon completion of all measurements reinstall all plugs using a non-hardening sealer, (Permatex #2 or equal) on the threads. Tighten all plugs and install safety wire.

3.4.3.10 Using 1-1/2 inch thick steel plate, fabricate a new

propeller nut wrench. When all propeller work is done, fabricate and install a bracket on the bulkhead of the 4-52-1-F tank in the upper level Motor Room to house the propeller nut wrench. Ship’s Chief Engineer will designate exact location.

3.4.3.11 Remove the port and starboard propellers from their

respective tailshafts and inspect the threads for damage.

Expose the forward ends of the tapers and perform an NDT examination by surface crack-detection method (magnetic particle or dye penetrant), all around the shafts in way of the forward portion of the taper sections, including the end of the keyways.

3.4.3.12 Propeller Shaft Inspections. Propeller inspection and polishing is accomplished under Item 3.3. While the propellers are removed from the propeller shafts, inspect all fit up areas of both ends of the shafts including tapers, threads and keyways for cracks or damage using an ABS-approved NDT method.

Reinstall propellers.

3.4.3.13 If the propellers have been reinstalled prior to

sandblasting, or if they are in the drydock during blasting operations, liberally coat the propellers with grease. Remove the grease coating prior to undocking.

3.4.3.14 Disconnect the tailshaft couplings from the port and starboard propulsion motor output flanges. Remove the couplings from the tailshafts. Slip the tailshafts aft approximately 18 inches or as needed to permit removal of the couplings. Remove couplings. See Note 3.4.5.2.

3.4.3.15 Fabricate a neoprene “bullet” or “nose cone” to thread onto the forward end of each propeller shaft to protect the stern tube bearings during tailshaft removal. Remove both propeller shafts from the ship, taking great care to support the shafts along their length to avoid injury or strain the shafts.

Note: shafts are approximately 52 feet long and 9 inches in diameter.

3.4.3.16 Although Oscar Elton Sette’s Port and Stbd Tailshaft Surveys are not due until March 28, 2023, removal of the shafts provides a unique opportunity to inspect the shafts and bearings. Notify ABS surveyor of the tailshaft removal and facilitate ABS inspection of the shafts for crediting of the ABS Tailshaft Survey.

3.4.3.17 While the tailshafts are removed, install two new Dual 100 Ohm Platinum RTDs in each strut. Run new cabling from the RTD up through the stern tube lube oil piping in the P/S struts to the junction boxes in the steering gear room. Provide the on-site services of a manufacturer’s General Electric factory certified field service engineer to make electrical connections and test new RTDs (see Note 3.4.5.3).

3.4.3.18 Disassemble and clean the forward and aft stern tube seal assemblies. Perform an inspection of the tail shafts’ forward and aft stern tube seal assemblies under the guidance of the technical representative. Provide a condition report to the COR including recommendations for any additional repairs or parts needed.

3.4.3.19 Provide and install new 220 MKII Aft Seal Kits, including Bio Seal o-rings, garter springs, gaskets, and lock washers. Provide and install new 200 MKII Fwd Seal Kits, including Bio Seal O-rings, garter springs, and gaskets. Only genuine Wärtsilä parts may be used. Note: The most current information at the time this specification was prepared, indicates delivery to be approximately three weeks after receipt of order (ARO). Verify seal kit delivery from the supplier, and ensure that new seal kits are ordered in time to perform seal renewals while the ship is on drydock. Provide a report to the COR for any additional parts or repairs needed, if any. Stern tube seal replacements shall be scheduled for the last two weeks on the drydock.

3.4.3.20 After all inspections and repair work are completed, fill the entire stern tube, including lube oil head and sump tanks, with new Envirologic 3068 oil. New oil shall be filtered through a filter cart with a 3 micron filter and gravity fed, not pumped, into the stern tube lube oil systems. Capacity of each stern tube lube oil system is approximately 150 gallons.

3.4.3.21 Conduct an operational test of the stern tube lube oil system for each tail shaft and inspect for leaks for 72 hours prior to undocking the ship.

3.4.4 Quality Assurance

3.4.4.1 After completion of all work, perform operational tests of the port and starboard propellers and shaft assemblies, first at the dock during dock trials, and then during the sea trials.

Measure and record the vibrations, lube oil pressures, and water temperatures throughout their full speed range.

3.4.5 Notes

3.4.5.1 Parts ordering information and manufacturer’s service representative arrangements for the tailshaft stern tube seals and bearings can be obtained from the following sources:

Wärtsilä Defense, Inc.

3617 Koppens Way Chesapeake, VA.